Lens Implantation, Intraocular
Lens Capsule, Crystalline
Eye Infections, Bacterial
Solid Phase Extraction
Glaucoma Drainage Implants
Lens Cortex, Crystalline
Zernike representation of corneal topography height data after nonmechanical penetrating keratoplasty. (1/1226)PURPOSE: To demonstrate a mathematical method for decomposition of discrete corneal topography height data into a set of Zernike polynomials and to demonstrate the clinical applicability of these computations in the postkeratoplasty cornea. METHODS: Fifty consecutive patients with either Fuchs' dystrophy (n = 20) or keratoconus (n = 30) were seen at 3 months, 6 months, and 1 year (before suture removal) and again after suture removal following nonmechanical trephination with the excimer laser. Patients were assessed using regular keratometry, corneal topography (TMS-1, simulated keratometry [SimK]), subjective refraction, and best-corrected visual acuity (VA) at each interval. A set of Zernike coefficients with radial degree 8 was calculated to fit two model surfaces: a complete representation (TOTAL) and a representation with parabolic terms only to define an approximate spherocylindrical surface (PARABOLIC). The root mean square error (RMS) was calculated comparing the corneal raw height data with TOTAL (TOTALRMS) and PARABOLIC (PARABOLICRMS). The cylinder of subjective refraction was correlated with the keratometric readings, the SimK, and the respective Zernike parameter. Visual acuity was correlated with the tilt components of the Zernike expansion. RESULTS: The measured corneal surface could be approximated by the composed surface 1 with TOTALRMS < or = 1.93 microm and by surface 2 with PARABOLICRMS < or = 3.66 microm. Mean keratometric reading after suture removal was 2.8+/-0.6 D. At all follow-up examinations, the SimK yielded higher values, whereas the keratometric reading and the refractive cylinder yielded lower values than the respective Zernike parameter. The correlation of the Zernike representation and the refractive cylinder (P = 0.02 at 3 months, P = 0.05 at 6 months and at 1 year, and P = 0.01 after suture removal) was much better than the correlation of the SimK and refractive cylinder (P = 0.3 at 3 months, P = 0.4 at 6 months, P = 0.2 at 1 year, and P = 0.1 after suture removal). Visual acuity increased from 0.23+/-0.10 at the 3-month evaluation to 0.54+/-0.19 after suture removal. After suture removal, there was a statistically significant inverse correlation between VA and tilt (P = 0.02 in patients with keratoconus and P = 0.05 in those with Fuchs' dystrophy). CONCLUSIONS: Zernike representation of corneal topography height data renders a reconstruction of clinically relevant corneal topography parameters with a marked reduction of redundance and a small error. Correlation of amount/axis of refractive cylinder with respective Zernike parameters is more accurate than with keratometry or respective SimK values of corneal topography analysis. (+info)
Changing trends in barriers to cataract surgery in India. (2/1226)Cataract is a major cause of blindness in Asia. Efforts in India to provide cataract surgical services have had limited success in reaching the cataract-blind population. Earlier studies identified the major barriers to cataract surgery as poverty, lack of transportation or felt need, or sex related; and the critical barriers in rural areas as lack of awareness, difficult access, and cost. Compared with these earlier data, the results of the present study in Karnataka State indicate a shift in the character of the barriers. They now appear to be more related to case selection and service provision. These shifts are analysed and alternative strategies to increase the uptake to cataract surgery are recommended. (+info)
Management of phacolytic glaucoma: experience of 135 cases. (3/1226)We retrospectively analyzed 135 eyes with phacolytic glaucoma. A trabeculectomy was added to standard cataract surgery if symptoms endured for more than seven days, or if preoperative control of intraocular pressure (IOP) with maximal medical treatment was inadequate. In the early postoperative period, IOP was significantly lower in the combined surgery group (89 eyes) compared to the cataract surgery group (46 eyes) (p < 0.001). At 6 months there was no difference in IOP or visual acuity between the two groups. There were no serious complications related to trabeculectomy. It is reasonable to conclude that in eyes with a long duration of phacolytic glaucoma, addition of a trabeculectomy to cataract surgery is safe, prevents postoperative rise in intraocular pressure and decreases the need for systemic hypotensive medications. A randomized trial is on to further address this question. (+info)
Economic burden of blindness in India. (4/1226)Economic analysis is one way to determine the allocation of scarce resources for health-care programs. The initial step in this process is to estimate in economic terms the burden of diseases and the benefit from interventions for prevention and treatment of these diseases. In this paper, the direct and indirect economic loss due to blindness in India is calculated on the basis of certain assumptions. The cost of treating cataract blindness in India is estimated at current prices. The economic burden of blindness in India for the year 1997 based on our assumptions is Rs. 159 billion (US$ 4.4 billion), and the cumulative loss over lifetime of the blind is Rs. 2,787 billion (US$ 77.4 billion). Childhood blindness accounts for 28.7% of this lifetime loss. The cost of treating all cases of cataract blindness in India is Rs. 5.3 billion (US$ 0.15 billion). Similar estimates for causes of blindness other than cataract have to be made in order to develop a comprehensive approach to deal with blindness in India. (+info)
Management of persistent hyperplastic primary vitreous by pars plana vitrectomy. (5/1226)Two children with persistent hyperplastic primary vitreous (PHPV) underwent vitrectomy and lensectomy via the pars plana to remove the fibrovascular stalk. Postoperatively the eyes were quiet, only a slight vitreous haze obscured the fundus view in the immediate postoperative period, and the stumps of the stalks retracted. Early surgical treatment of PHPV may prevent later serious complications. (+info)
Lens extraction with ultrasound. Experiments in rabbits. (6/1226)The extraction of the rabbit lens is described using a 25 G irrigating needle and a 22 G aspirating needle; at the latter's bevelled tip lens fragmentation occurs due to the longitudinal ultrasonic vibrations generated there--an 'acoustic horn' causes the tip to vibrate with large amplitudes. The use of small needles allows considerable manoeuvrability in the anterior chamber and usually eliminates the need for corneal suturing. Push-pull coupled syringes equate the volume of irrigation with that of aspiration. This procedure makes possible lens extraction through an aperture in the anterior capsule of the rabbit's lens and a similar machine is being constructed for trial on human cataract. (+info)
Perifoveal vascular leakage and macular oedema after intracapsular cataract extraction. (7/1226)Perifoveal capillary leakage of fluorescein was demonstrated in 60 per cent of 50 eyes when angiography was performed two weeks after cataract extraction. Repeat angiography six weeks postoperatively in 17 eyes demonstrated persistence of already established leakage in 11 of 12 eyes and no new leakage in five eyes previously negative. Cystoid macular oedema with visual acuity of less than 20/40 six weeks postoperatively occurred in five eyes (10 per cent). Eyes of patients with vascular disease and those patients of 60 years or older were found to have altered vascular permeability significantly more frequently. Inflammation was no more severe or prevalent in those patients who demonstrated leakage and no inflammation was clinically apparent in 10 of 11 eyes demonstrating dye leakage six weeks postoperatively. We conclude that the constitutional factors of age and vascular disease are of prime importance in causing altered vascular permeability in the early postoperative period after cataract extraction; factors causing sustained leakage with reduction of visual acuity were not demonstrated. (+info)
Prospective audit comparing ambulatory day surgery with inpatient surgery for treating cataracts. (8/1226)OBJECTIVES: To compare the cost effectiveness and safety of inpatient cataract surgery (with one night in hospital postoperatively) with ambulatory day case surgery under local anaesthesia. DESIGN: Prospective study of patients receiving inpatient (group 1) or day case (group 2) surgery. SETTING: One ophthalmic surgical firm. PATIENTS: 100 patients in each group, excluding those with coexisting ocular conditions, contraindications to local or request for general anaesthesia, ill health, or lack of agreed minimum social care; four patients died during follow up. INTERVENTIONS: Envelope method and implantation of the posterior chamber lens into the capsular sac in both groups. MAIN MEASURES: Perioperative complications, operating and turnover times, visual outcome at three to six days and 10 weeks to six months after operation, patient satisfaction (according to self administered questionnaire) at three to six days, and total costs (1989 salaries) for both groups. RESULTS: Patients in both groups did not differ significantly in age or sex, perioperative complications, visual outcome (6/9 or better in 78 patients in group 1 and 75 in group 2 at one month after operation and 6/12 or better in 92/98 in group 1, 90/98 in group 2 at final follow up), or patient satisfaction. The mean total cost per patient for group 1 patients was 365.99 pounds and for group 2, 221.62 pounds. CONCLUSIONS: Day case surgery for cataract is safe and more cost effective. IMPLICATIONS: Day case surgery should be recommended to increase availability of cataract surgery and thereby improve quality of life for more patients. (+info)
A cataract is a clouding of the natural lens in the eye that affects vision. The lens is responsible for focusing light onto the retina, which is the light-sensitive tissue at the back of the eye. When the lens becomes cloudy, it can interfere with the ability of light to pass through and be focused properly, leading to vision problems. Cataracts are a common age-related condition, but they can also be caused by injury, disease, or certain medications. Symptoms of cataracts may include blurry vision, difficulty seeing at night, sensitivity to light, double vision, and the appearance of halos around lights. Treatment for cataracts typically involves surgery to remove the cloudy lens and replace it with an artificial lens. This procedure, called cataract surgery, is generally safe and effective, and can significantly improve vision in people with cataracts.
Hyphema is a medical condition characterized by the presence of blood within the front part of the eye, known as the anterior chamber. It occurs when blood vessels in the eye are damaged, causing blood to leak into the anterior chamber. Hyphema can be caused by a variety of factors, including blunt trauma to the eye, eye surgery, high blood pressure, or certain medical conditions such as sickle cell disease or glaucoma. Symptoms of hyphema may include eye pain, redness, sensitivity to light, blurred vision, and the appearance of a red ring around the iris. In severe cases, hyphema can lead to vision loss if it is not treated promptly. Treatment for hyphema typically involves rest, ice packs, and the use of eye drops to reduce inflammation and prevent further bleeding. In some cases, surgery may be necessary to remove the blood from the anterior chamber and restore normal vision.
Endophthalmitis is a serious medical condition that occurs when the inner part of the eye, called the vitreous humor, becomes infected or inflamed. This can happen as a result of a bacterial, fungal, or viral infection, or it can be caused by a traumatic injury to the eye. Symptoms of endophthalmitis may include severe eye pain, redness, sensitivity to light, and vision loss. If left untreated, endophthalmitis can lead to permanent vision loss or even blindness. Treatment for endophthalmitis typically involves the use of antibiotics or antifungal medications to fight the infection, as well as surgery to remove any infected or damaged tissue from the eye. It is important to seek medical attention immediately if you suspect that you or someone else may have endophthalmitis, as prompt treatment is crucial for preventing permanent damage to the eye.
Aphakia, postcataract refers to the condition of having no lens in the eye after cataract surgery. Cataract surgery involves removing the cloudy natural lens of the eye and replacing it with an artificial lens. If the natural lens is not removed completely during surgery, or if the artificial lens does not fit properly, it can result in aphakia. This condition can cause a variety of visual problems, including difficulty focusing on objects, sensitivity to light, and double vision. Treatment for aphakia may include the use of glasses or contact lenses to correct vision, or the implantation of a new artificial lens.
Pseudophakia is a medical condition in which a person has an artificial lens implanted in their eye, but the natural lens has not been removed. This is in contrast to phakia, which refers to a person who has a natural lens in their eye. Pseudophakia is often seen in people who have had cataract surgery, in which the natural lens is removed and replaced with an artificial one. The term "pseudophakia" is used to distinguish between people who have had cataract surgery and those who have not.
Postoperative complications are adverse events that occur after a surgical procedure. They can range from minor issues, such as bruising or discomfort, to more serious problems, such as infection, bleeding, or organ damage. Postoperative complications can occur for a variety of reasons, including surgical errors, anesthesia errors, infections, allergic reactions to medications, and underlying medical conditions. They can also be caused by factors such as poor nutrition, dehydration, and smoking. Postoperative complications can have serious consequences for patients, including prolonged hospital stays, additional surgeries, and even death. Therefore, it is important for healthcare providers to take steps to prevent postoperative complications and to promptly recognize and treat them if they do occur.
Lens diseases refer to a group of conditions that affect the lens of the eye. The lens is a transparent structure located behind the iris that focuses light onto the retina, allowing us to see clearly. Lens diseases can affect the structure, function, or both of the lens, leading to visual impairment or blindness. Some common types of lens diseases include: 1. Cataracts: A clouding of the lens that can cause vision loss. 2. Presbyopia: A natural age-related condition that causes difficulty in focusing on close objects. 3. Lens subluxation: A displacement of the lens from its normal position, which can cause vision problems. 4. Lens dislocation: A complete separation of the lens from its normal position, which can cause severe vision loss. 5. Lens luxation: A partial displacement of the lens from its normal position, which can also cause vision problems. 6. Lens opacities: A general term used to describe any clouding or opacity of the lens. 7. Lens subcapsular cataracts: A type of cataract that develops in the back of the lens. 8. Nuclear cataracts: A type of cataract that develops in the center of the lens. 9. Cortical cataracts: A type of cataract that develops on the surface of the lens. Lens diseases can be treated with medication, surgery, or a combination of both. Early detection and treatment are important to prevent vision loss or blindness.
Eye diseases refer to any medical conditions that affect the eyes, including the structures and tissues that make up the eye, as well as the visual system. These conditions can range from minor irritations and infections to more serious and potentially blinding conditions. Some common examples of eye diseases include: 1. Cataracts: A clouding of the lens in the eye that can cause vision loss. 2. Glaucoma: A group of eye diseases that can damage the optic nerve and lead to vision loss. 3. Age-related macular degeneration: A progressive eye disease that affects the central part of the retina and can cause vision loss. 4. Diabetic retinopathy: A complication of diabetes that can damage the blood vessels in the retina and lead to vision loss. 5. Retinitis pigmentosa: A genetic disorder that causes progressive vision loss. 6. Conjunctivitis: An inflammation of the conjunctiva, the thin, clear membrane that covers the white part of the eye. 7. Uveitis: An inflammation of the middle layer of the eye, including the iris, ciliary body, and choroid. 8. Corneal dystrophies: A group of inherited conditions that cause abnormal growth of the cornea, the clear front part of the eye. 9. Optic neuritis: An inflammation of the optic nerve that can cause vision loss. 10. Strabismus: A condition in which the eyes do not align properly, which can cause double vision. These are just a few examples of the many eye diseases that can affect people. Early detection and treatment are important for preventing vision loss and preserving sight.
In the medical field, "prolapse" refers to the displacement or falling out of an organ or tissue from its normal position. This can occur in various parts of the body, including the uterus, rectum, bladder, and vaginal wall. For example, in pelvic organ prolapse, the uterus, bladder, or rectum may drop down into the vagina, causing symptoms such as a feeling of heaviness in the pelvis, difficulty urinating or emptying the bladder, or difficulty having sex. This condition is more common in women, especially those who have given birth vaginally or who are over the age of 50. Prolapse can also occur in other parts of the body, such as the esophagus or the anus. In these cases, the condition may be referred to by a different name, such as esophageal prolapse or anal prolapse. Treatment for prolapse depends on the severity of the condition and the symptoms experienced by the individual. In some cases, lifestyle changes or physical therapy may be recommended to help manage symptoms. In more severe cases, surgery may be necessary to repair the prolapsed organ or tissue.
Retinal detachment is a medical condition in which the retina, the light-sensitive layer at the back of the eye, separates from the underlying tissue. This can cause vision loss and, if left untreated, can lead to permanent blindness. Retinal detachment can occur due to a variety of factors, including trauma, eye surgery, or certain medical conditions such as diabetes or high blood pressure. Treatment typically involves surgery to repair the detached retina and prevent further damage.
Iris diseases refer to a group of medical conditions that affect the iris, which is the colored part of the eye that controls the size of the pupil. These diseases can affect the structure, function, or appearance of the iris and can cause a range of symptoms, including changes in eye color, vision problems, and eye pain. Some common iris diseases include: 1. Iris coloboma: A congenital condition in which there is a defect in the iris that can cause vision problems and other complications. 2. Iris atrophy: A condition in which the iris becomes thin and loses its color, which can cause vision problems and changes in eye appearance. 3. Iris neovascularization: A condition in which new blood vessels grow in the iris, which can cause vision problems and other complications. 4. Iris melanoma: A type of cancer that can develop in the iris and can cause vision problems, eye pain, and other complications. 5. Iris inflammation: Inflammation of the iris, which can cause redness, swelling, and pain in the eye. 6. Iris dystrophy: A condition in which the iris becomes cloudy or discolored, which can cause vision problems and changes in eye appearance. Treatment for iris diseases depends on the specific condition and may include medications, surgery, or other interventions. It is important to seek medical attention if you experience any symptoms of an iris disease, as early diagnosis and treatment can help prevent complications and improve outcomes.
Astigmatism is a common refractive error that affects the way light enters the eye and is focused on the retina. It occurs when the cornea, the clear outer layer of the eye, is not perfectly round, but instead has an irregular shape that causes light to bend differently at different points. This results in blurred vision at all distances, as well as the perception of distorted or wavy vision. Astigmatism can be caused by a variety of factors, including genetics, eye injuries, and certain medical conditions such as keratoconus. It can be corrected with glasses, contact lenses, or refractive surgery. In some cases, astigmatism may also be associated with other eye conditions, such as cataracts or glaucoma, and may require additional treatment.
Intraoperative complications refer to any unexpected events or problems that occur during a surgical procedure. These complications can range from minor issues, such as bleeding or infection, to more serious problems, such as organ damage or death. Intraoperative complications can be caused by a variety of factors, including surgical errors, anesthesia errors, or underlying medical conditions of the patient. It is important for surgeons and other medical professionals to be aware of the potential for intraoperative complications and to take steps to prevent them whenever possible. If a complication does occur, it is important to address it promptly and appropriately to minimize the risk of further harm to the patient.
Glaucoma is a group of eye diseases that damage the optic nerve, which is responsible for transmitting visual information from the eye to the brain. This damage can lead to gradual vision loss and, in severe cases, blindness. There are several types of glaucoma, including open-angle glaucoma, closed-angle glaucoma, and normal-tension glaucoma. Open-angle glaucoma is the most common type and typically affects both eyes. It occurs when the drainage system in the eye becomes blocked, causing increased pressure inside the eye. Closed-angle glaucoma is less common and occurs when the iris blocks the drainage system, causing a sudden increase in eye pressure. Normal-tension glaucoma occurs when the eye pressure is within the normal range, but the optic nerve is still damaged. Symptoms of glaucoma may include blurred vision, eye pain, redness, and sensitivity to light. However, many people with glaucoma have no symptoms until the disease is advanced. That's why regular eye exams are important for early detection and treatment. Treatment for glaucoma typically involves lowering eye pressure with medication, laser therapy, or surgery. The goal of treatment is to slow or stop the progression of the disease and preserve vision.
Eye infections caused by bacteria are a common type of eye infection that can affect people of all ages. These infections can cause a range of symptoms, including redness, swelling, itching, discharge, and sensitivity to light. Bacterial eye infections can affect the surface of the eye (conjunctivitis) or the inside of the eye (endophthalmitis). Conjunctivitis is the most common type of bacterial eye infection and can be caused by a variety of bacteria, including Streptococcus pneumoniae, Haemophilus influenzae, and Staphylococcus aureus. Endophthalmitis is a more serious infection that can cause vision loss and is typically treated with antibiotics administered directly into the eye. Bacterial eye infections are usually treated with antibiotics, which can be taken orally or applied directly to the eye. In some cases, additional treatment may be necessary to manage symptoms or prevent complications. It is important to seek medical attention if you suspect you have a bacterial eye infection, as prompt treatment can help prevent the infection from spreading and reduce the risk of complications.
Uveal diseases refer to any medical conditions that affect the uvea, which is the middle layer of the eye that includes the iris, ciliary body, and choroid. The uvea plays a crucial role in regulating the amount of light that enters the eye and maintaining the shape of the eye. Uveal diseases can be classified into several categories, including inflammatory diseases, neoplastic diseases, and degenerative diseases. Some common examples of uveal diseases include: 1. Uveitis: Inflammation of the uvea, which can be caused by infections, autoimmune disorders, or other underlying medical conditions. 2. Glaucoma: A group of eye diseases that can damage the optic nerve and lead to vision loss. 3. Retinal detachment: A condition in which the retina, the light-sensitive layer at the back of the eye, separates from the underlying tissue. 4. Cataracts: A clouding of the lens in the eye that can cause vision loss. 5. Age-related macular degeneration: A progressive eye disease that affects the central part of the retina and can lead to vision loss. 6. Tumors: Benign or malignant tumors that can develop in the uvea. Uveal diseases can be diagnosed through a variety of tests, including eye exams, imaging studies, and laboratory tests. Treatment options depend on the specific disease and may include medications, surgery, or other interventions. Early detection and treatment are important for preventing vision loss and preserving eye health.
Glaucoma, open-angle, is a type of glaucoma that occurs when the drainage system in the eye becomes blocked or damaged, leading to an increase in pressure within the eye. This increased pressure can damage the optic nerve, which can result in vision loss or blindness if left untreated. In open-angle glaucoma, the drainage system of the eye is not completely blocked, but rather the angle between the iris and the cornea becomes narrower, reducing the amount of fluid that can drain out of the eye. This can cause the pressure within the eye to gradually increase over time, leading to damage to the optic nerve. Open-angle glaucoma is the most common type of glaucoma and is often referred to as "the sneak thief of sight" because it typically progresses slowly and without noticeable symptoms in the early stages. However, if left untreated, it can cause significant vision loss or blindness. Treatment for open-angle glaucoma typically involves medications to lower the pressure within the eye, laser surgery, or surgery to improve the drainage of fluid from the eye.
Silicone oils are a type of synthetic oil that are commonly used in the medical field for a variety of purposes. They are made from silicone polymers and are known for their low viscosity, high thermal stability, and chemical inertness. In the medical field, silicone oils are often used as a lubricant in surgical procedures, as well as in the manufacture of medical devices such as catheters, implants, and prosthetics. They are also used as a treatment for certain eye conditions, such as retinal detachment, where they are injected into the eye to help the retina reattach to the back of the eye. Silicone oils are generally considered safe for medical use, although they can cause some side effects, such as irritation or allergic reactions. They are also not recommended for use in patients with certain medical conditions, such as silicone allergy or compromised immune systems.
Iridocyclitis is an inflammation of the iris and the surrounding structures of the eye, including the ciliary body and the cyclotilium. It is a type of uveitis, which is an inflammation of the uvea, the middle layer of the eye that includes the iris, ciliary body, and choroid. Iridocyclitis can be caused by a variety of factors, including infections, autoimmune disorders, and certain medications. Symptoms of iridocyclitis may include redness, pain, sensitivity to light, tearing, and vision changes. Treatment for iridocyclitis typically involves the use of corticosteroids to reduce inflammation, as well as antibiotics if the inflammation is caused by an infection. In some cases, additional treatments such as immunosuppressive drugs or laser therapy may be necessary. Early diagnosis and treatment are important to prevent complications such as vision loss or scarring of the eye.
Vision disorders refer to a range of conditions that affect an individual's ability to see clearly or perceive visual information accurately. These disorders can affect any part of the visual system, including the eyes, the optic nerve, the brain, or the visual pathways that connect these structures. Some common vision disorders include: 1. Refractive errors: These are errors in the shape of the eye that cause light to focus incorrectly on the retina, leading to blurred vision. Examples include nearsightedness (myopia), farsightedness (hyperopia), and astigmatism. 2. Cataracts: A cataract is a clouding of the lens in the eye that can cause。 3. Glaucoma: Glaucoma is a group of eye diseases that can damage the optic nerve and lead to vision loss or blindness. 4. Age-related macular degeneration (AMD): AMD is a progressive eye disease that affects the macula, the part of the retina responsible for central vision. 5. Diabetic retinopathy: This is a complication of diabetes that can cause damage to the blood vessels in the retina, leading to vision loss. 6. Retinitis pigmentosa: This is a genetic disorder that causes progressive damage to the retina, leading to night blindness and eventually vision loss. 7. Amblyopia: Amblyopia, also known as lazy eye, is a condition in which the brain does not properly use one eye, leading to reduced vision in that eye. These are just a few examples of the many vision disorders that can affect individuals. Treatment for these disorders may include corrective lenses, surgery, medication, or other interventions, depending on the specific condition and its severity.
Eye injuries, penetrating refers to damage to the eye caused by a foreign object or substance that has penetrated the outer protective layer of the eye, such as the cornea or sclera. Penetrating eye injuries can be caused by a variety of objects, including sharp objects like glass or metal, as well as blunt objects like or tools. These injuries can cause damage to the internal structures of the eye, including the lens, retina, and optic nerve, which can lead to vision loss or even blindness. Treatment for penetrating eye injuries typically involves removing the foreign object and repairing any damage to the eye's internal structures. In some cases, surgery may be necessary to restore vision.
Corneal diseases refer to any medical conditions that affect the cornea, which is the clear, dome-shaped outer layer of the eye that covers the iris, pupil, and anterior chamber. The cornea plays a crucial role in focusing light onto the retina, which is the light-sensitive tissue at the back of the eye. Corneal diseases can be caused by a variety of factors, including infections, injuries, genetic disorders, autoimmune diseases, and degenerative conditions. Some common examples of corneal diseases include: 1. Keratitis: Inflammation of the cornea, which can be caused by infections, injuries, or other factors. 2. Corneal dystrophies: A group of genetic disorders that cause the cornea to thicken or become cloudy. 3. Corneal ulcers: Open sores on the cornea that can be caused by infections, injuries, or other factors. 4. Corneal scars: Scarring of the cornea that can affect vision. 5. Corneal dystrophies: A group of genetic disorders that cause the cornea to thicken or become cloudy. 6. Corneal dystrophies: A group of genetic disorders that cause the cornea to thicken or become cloudy. 7. Corneal dystrophies: A group of genetic disorders that cause the cornea to thicken or become cloudy. 8. Corneal dystrophies: A group of genetic disorders that cause the cornea to thicken or become cloudy. 9. Corneal dystrophies: A group of genetic disorders that cause the cornea to thicken or become cloudy. 10. Corneal dystrophies: A group of genetic disorders that cause the cornea to thicken or become cloudy. Treatment for corneal diseases depends on the specific condition and its severity. In some cases, treatment may involve the use of eye drops, ointments, or other medications to manage symptoms or prevent infection. In more severe cases, surgery may be necessary to restore vision or prevent further damage to the eye.
Lens subluxation is a condition in which the lens of the eye becomes dislocated from its normal position within the eye. This can occur as a result of trauma, aging, or other factors. Lens subluxation can cause a range of symptoms, including blurred vision, sensitivity to light, and difficulty seeing at night. In severe cases, it can lead to vision loss. Treatment for lens subluxation typically involves surgery to reposition the lens or remove it and replace it with an artificial lens.
Eye injuries refer to any damage or trauma that affects the structures of the eye, including the cornea, iris, lens, retina, optic nerve, and surrounding tissues. These injuries can be caused by a variety of factors, including physical trauma, chemical exposure, radiation, or infection. Eye injuries can range from minor to severe and can cause temporary or permanent vision loss, depending on the extent of the damage. Some common types of eye injuries include corneal abrasions, conjunctivitis, chemical burns, foreign body injuries, and retinal detachment. Treatment for eye injuries depends on the severity and type of injury. Minor injuries may be treated with eye drops or ointments, while more severe injuries may require surgery or other medical interventions. It is important to seek medical attention immediately if you suspect that you or someone else has suffered an eye injury to prevent further damage and promote the best possible outcome.
Myopia, also known as nearsightedness, is a common vision condition in which a person can see objects that are close to them clearly, but objects that are far away appear blurry. This occurs when the eyeball is too long or the cornea is too curved, causing light to focus in front of the retina instead of on it. As a result, the person sees distant objects as if they are out of focus. Myopia can be corrected with glasses, contact lenses, or refractive surgery. It is a common condition, affecting an estimated 2.2 billion people worldwide, and can often be managed with proper eye care and regular eye exams. However, if left untreated, myopia can lead to more serious vision problems, such as glaucoma or cataracts.
Aniseikonia refers to a condition in which the two eyes have different visual fields or images. This can result in a distorted or mismatched perception of the visual world, and can cause symptoms such as double vision, difficulty reading, and problems with depth perception. Aniseikonia can be caused by a variety of factors, including eye injuries, diseases such as glaucoma or cataracts, or the use of certain medications. Treatment for aniseikonia depends on the underlying cause and may include corrective lenses, surgery, or other interventions.
Gamma-crystallins are a group of proteins that are found in the lens of the eye. They are the most abundant proteins in the lens and play a crucial role in maintaining the transparency and shape of the lens. Gamma-crystallins are also involved in regulating the concentration of ions and other molecules in the lens, which helps to maintain the proper osmotic balance and prevent the lens from swelling or shrinking. Mutations in the genes that encode gamma-crystallins can lead to a variety of eye disorders, including cataracts and other lens abnormalities.
Retinal Perforations refer to a hole or tear in the retina, which is the light-sensitive layer of tissue at the back of the eye. This can occur due to various reasons such as trauma, high blood pressure, or eye infections. Retinal Perforations can lead to a condition called retinal detachment, which is a serious medical emergency that requires prompt medical attention. Retinal detachment occurs when the retina separates from the underlying tissue, causing vision loss and potentially permanent damage to the eye. Treatment for Retinal Perforations may include surgery to repair the tear or hole in the retina, as well as medications to manage any underlying conditions that may have contributed to the perforation.
Uveitis is an inflammation of the uvea, which is the middle layer of the eye that includes the iris, ciliary body, and choroid. It can affect one or both eyes and can be caused by a variety of factors, including infections, autoimmune disorders, and certain medications. Symptoms of uveitis may include redness, pain, sensitivity to light, blurred vision, and floaters. If left untreated, uveitis can lead to serious complications, such as glaucoma, cataracts, and vision loss. Treatment for uveitis typically involves the use of corticosteroids and other anti-inflammatory medications, as well as management of any underlying causes of the inflammation.
Refractive errors are a group of conditions that affect the way light passes through the eye and reaches the retina. The retina is a light-sensitive tissue at the back of the eye that converts light into electrical signals that are sent to the brain for processing. When light does not pass through the eye correctly, it can result in refractive errors. Refractive errors can be classified into three main categories: myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. Myopia occurs when the eye is too long or the cornea is too curved, causing light to focus in front of the retina instead of on it. Hyperopia occurs when the eye is too short or the cornea is too flat, causing light to focus behind the retina instead of on it. Astigmatism occurs when the cornea is irregularly shaped, causing light to focus unevenly on the retina. Refractive errors can be corrected with glasses, contact lenses, or refractive surgery. The type of correction needed depends on the severity and type of refractive error, as well as the individual's visual needs and lifestyle. Regular eye exams are important for detecting and managing refractive errors to prevent vision loss and maintain good eye health.
Crystallins are a group of proteins that are found in the lens of the eye. They are responsible for maintaining the transparency and shape of the lens, which is essential for focusing light onto the retina and allowing us to see clearly. There are several different types of crystallins, including alpha, beta, and gamma crystallins, each with its own unique structure and function. In the medical field, crystallins are often studied in the context of age-related eye diseases such as cataracts, which are caused by the accumulation of abnormal protein aggregates in the lens.
Ocular hypertension is a condition characterized by elevated intraocular pressure (IOP) within the eye, which is above the normal range of 10-21 mmHg. The elevated IOP can cause damage to the optic nerve, leading to vision loss or even blindness if left untreated. Ocular hypertension is often asymptomatic, meaning that individuals with the condition may not experience any noticeable symptoms. However, it is considered a risk factor for the development of glaucoma, a progressive eye disease that can cause irreversible vision loss. Diagnosis of ocular hypertension typically involves measuring the IOP using a tonometer, a device that measures the pressure within the eye. If the IOP is consistently above 21 mmHg, the individual may be diagnosed with ocular hypertension. Treatment for ocular hypertension typically involves medications to lower the IOP, such as eye drops or oral medications. In some cases, laser surgery or other procedures may be recommended to reduce the pressure within the eye. Regular monitoring of the IOP is also important to ensure that the condition is being effectively managed and to detect any potential complications.
Cobalt radioisotopes are radioactive isotopes of the element cobalt that are used in medical applications. These isotopes are typically produced by bombarding cobalt-59 with neutrons in a nuclear reactor or by using a cyclotron to accelerate protons onto a cobalt-59 target. There are several different cobalt radioisotopes that are used in medicine, including cobalt-57, cobalt-58, cobalt-60, and cobalt-67. Each of these isotopes has a different half-life (the time it takes for half of the atoms in a sample to decay) and emits different types of radiation. Cobalt radioisotopes are used in a variety of medical applications, including diagnostic imaging and radiation therapy. For example, cobalt-60 is often used as a source of gamma radiation in radiation therapy to treat cancer. Cobalt-57 is used in a diagnostic test called a "bone scan" to detect bone abnormalities, such as fractures or tumors. Cobalt-58 is used in a similar test called a "lung scan" to detect lung abnormalities. Overall, cobalt radioisotopes play an important role in the diagnosis and treatment of a variety of medical conditions.
Retinal neoplasms refer to abnormal growths or tumors that develop on the retina, which is the light-sensitive layer of tissue at the back of the eye. These neoplasms can be either benign (non-cancerous) or malignant (cancerous) in nature. Retinal neoplasms can occur in various parts of the retina, including the choroid, the layer of blood vessels and connective tissue beneath the retina, and the pigment epithelium, the layer of cells that covers the retina and helps to nourish and maintain it. Retinal neoplasms can cause a range of symptoms, depending on their size, location, and type. Some common symptoms include changes in vision, such as blurred vision, floaters, or flashes of light, as well as pain or discomfort in the eye. Diagnosis of retinal neoplasms typically involves a comprehensive eye exam, including dilated eye exams, imaging tests such as optical coherence tomography (OCT) or fluorescein angiography, and sometimes a biopsy to confirm the diagnosis. Treatment for retinal neoplasms depends on the type, size, and location of the tumor, as well as the patient's overall health and preferences. Options may include observation, laser therapy, cryotherapy, radiation therapy, or surgery.
Macular edema is a medical condition that occurs when there is fluid accumulation in the macula, which is the central part of the retina responsible for sharp, central vision. This fluid accumulation can cause swelling and damage to the macula, leading to vision loss or distortion. Macular edema can be caused by a variety of factors, including diabetes, high blood pressure, retinal vein occlusion, and age-related macular degeneration. It can also be a complication of certain eye surgeries or injuries. Treatment for macular edema depends on the underlying cause and severity of the condition. In some cases, medications such as anti-inflammatory drugs or steroids may be prescribed to reduce inflammation and swelling. Laser therapy or photodynamic therapy may also be used to treat certain types of macular edema. In severe cases, surgery may be necessary to remove the fluid and restore vision.
Edema is a medical condition characterized by the accumulation of excess fluid in the body's tissues. It can occur in any part of the body, but is most commonly seen in the feet, ankles, legs, and hands. Edema can be caused by a variety of factors, including heart failure, kidney disease, liver disease, hormonal imbalances, pregnancy, and certain medications. It can also be a symptom of other medical conditions, such as cancer or lymphedema. Edema can be diagnosed through physical examination and medical imaging, and treatment depends on the underlying cause.
Blindness is a medical condition characterized by a severe loss of vision that affects a person's ability to see and navigate their environment. In medical terms, blindness is defined as visual acuity of less than 20/200 in the better eye, even with corrective lenses. This means that a person with blindness cannot see as well as a person with normal vision, and may have difficulty recognizing faces, reading, or performing other tasks that require good vision. Blindness can be caused by a variety of factors, including genetic disorders, eye injuries, infections, diseases such as glaucoma or cataracts, and aging. It can also be caused by neurological conditions such as stroke or brain injury, or by certain medications or toxins. Treatment for blindness depends on the underlying cause and severity of the condition. In some cases, corrective lenses or surgery may be able to improve vision. In other cases, rehabilitation and assistive technology such as braille, audio books, and guide dogs may be necessary to help individuals with blindness live independently and participate fully in society.
Diabetic Retinopathy is a medical condition that affects the blood vessels in the retina, which is the light-sensitive layer at the back of the eye. It is a common complication of diabetes mellitus, and it can lead to vision loss if left untreated. Diabetic Retinopathy occurs when high blood sugar levels damage the blood vessels in the retina, causing them to leak or become blocked. This can lead to swelling, bleeding, and the formation of abnormal blood vessels, which can further damage the retina and cause vision loss. There are two main types of diabetic retinopathy: non-proliferative diabetic retinopathy and proliferative diabetic retinopathy. Non-proliferative diabetic retinopathy is the more common type and is characterized by damage to the blood vessels in the retina, but without the formation of new blood vessels. Proliferative diabetic retinopathy is a more advanced form of the disease, and it is characterized by the growth of new blood vessels in the retina, which can cause bleeding and further vision loss. Diabetic Retinopathy is typically diagnosed through a comprehensive eye exam, which may include dilating the pupils to allow for a better view of the retina. Treatment options for Diabetic Retinopathy may include laser therapy, medication, or surgery, depending on the severity of the condition. Early detection and treatment are crucial for preventing vision loss in people with diabetes.
Beta-crystallin A chain is a protein that is a component of the eye lens. It is one of the major structural proteins in the lens and plays a role in maintaining the shape and transparency of the lens. Beta-crystallin A chain is encoded by the CRYBA1 gene. Mutations in this gene can lead to cataracts, a clouding of the lens that can cause vision loss.
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- Hospitals, clinics and medical centers in Germany performing Extracapsular Cataract Extraction. (health-tourism.com)
- Extracapsular cataract extraction (ECCE) is a type of eye cataract surgery. (health-tourism.com)
- What are the common types of Extracapsular Cataract Extraction? (health-tourism.com)
- How is Extracapsular Cataract Extraction Performed? (health-tourism.com)
- Effect of intraocular lens implantation on combined extracapsular cataract extraction with trabeculectomy: a comparative study. (bmj.com)
- Extracapsular extraction: The doctor uses a small tool to remove the cataract in mostly one piece. (medlineplus.gov)
- This surgical technique is also called manual extracapsular cataract extraction. (healthnews.com)
- Phacoemulsification: With this procedure, the doctor uses a tool that produces sound waves to break up the cataract into small pieces. (medlineplus.gov)
- Phacoemulsification is the most common cataract surgery, but in developing countries a modified version is used called MSICS (manual small incision cataract surgery). (healthnews.com)
- Phacoemulsification is the most commonly recommended surgical method for cataract surgery today. (healthnews.com)
- Phacoemulsification constitutes over 90% of cataract surgeries worldwide today and is considered the standard of care. (healthnews.com)
- ECCE is preferred for patients who have very hard cataracts or in other clinical situations when phacoemulsification may not be possible. (healthnews.com)
- Although outpatient cataract surgery increased by 11.7%, use of methods such as phacoemulsification is not widespread, and more attention should be paid to the barriers to outpatient cataract surgery in the Islamic Republic of Iran. (who.int)
- The most common types of cataract surgery include intra-capsular cataract extraction, extra-capsular cataract extraction and phacoemulsification. (lifepositive.com)
- Results: Before introducing cefuroxime, 3,407 cataract surgeries were performed using the phacoemulsification technique, and 7 post-operatory cases of endophthalmitis occurred (0.2% incidence). (bvsalud.org)
- The DRK Ophthamology out-patient centre majors in cataract surgery, while the in-patient Ophthamology department receives retinal, glaucoma and corneal transplant cases. (health-tourism.com)
- Four patients had cataract extraction and a posterior chamber intraocular lens implant, one had repositioning of a previously implanted anterior chamber intraocular lens that had become dislocated, and one had a trabeculectomy filtering procedure for glaucoma. (cdc.gov)
- Complicated cataract: This may follow owing to a long-term detachment of the retina, glaucoma, tumours inside the eye and inflammation of the eyes. (lifepositive.com)
Intraocular lens implantation1
- Anterior chamber inflammation decreased dramatically, and cataract surgery with intraocular lens implantation was performed sequentially in both eyes 4 weeks later. (cdc.gov)
- Congenital Cataract Congenital cataract is a lens opacity that is present at birth or shortly after birth. (msdmanuals.com)
- In fact, there is a modification of ECCE which has been adopted called manual small incision cataract surgery or MSICS where no sutures are required. (healthnews.com)
- The ten-year cumulative incidence was 43.6% for any cataract, 23.1% for nuclear cataract, 22.0% for cortical cataract, 13.1% for PSC cataract, and 26.8% for cataract surgery. (emmes.com)
- Females had a higher incidence of any, nuclear and cortical cataract and cataract surgery (p = 0.02-0.05). (emmes.com)
- Incidence of cortical cataract was higher in non-white participants (p = 0.001). (emmes.com)
- To estimate the burden of visual loss and blindness due to cataract in people aged 50 years and over in Paraguay. (nih.gov)
- Cataracts are the leading cause of blindness worldwide. (msdmanuals.com)
- Cataract can lead to blindness if left untreated. (lifepositive.com)
- Such a condition is called cataract-where there is opacity or clouding of the eye's natural lens, which if not treated can lead to blindness. (lifepositive.com)
- Ultimately, the cataract may become so dense that it blocks the light, causing blindness. (lifepositive.com)
- Once Timir roga results in a disease condition, it is called Kanch and if this Kanch leads to blindness, it is called Lingnash (cataract). (lifepositive.com)
- Thought you might appreciate this item(s) I saw in Journal of Cataract & Refractive Surgery. (lww.com)
- We often hear how cataract surgery is becoming refractive surgery. (ophthalmologytimes.com)
- In fact, cataract surgery became refractive surgery when Sir Harold Ridley implanted the first IOL. (ophthalmologytimes.com)
- With a nuclear cataract, distance vision worsens. (msdmanuals.com)
- While the prevalence of vision reducing cataract increased with age, the prevalence of trachoma related vision loss did not increase with age, suggesting that trichiasis related vision loss in this population might not be cumulative. (cehjournal.org)
- She had bilateral anterior uveitis, large keratic precipitates, iris nodules, posterior synechiae, cyclitic membrane, and cataract ( Figure 1 , panels A, B). Fundus visualization and ocular ultrasonography ruled out retinoblastoma. (cdc.gov)
- A posterior subcapsular cataract disproportionately affects vision because the opacity is located at the crossing point of incoming light rays. (msdmanuals.com)
- Baseline and annual lens photographs of participants, aged 55-80 years, were graded centrally for nuclear, cortical, and posterior subcapsular (PSC) lens opacities using the AREDS System for Classifying Cataracts. (emmes.com)
- Claesson M, Armitage WJ, Stenevi U. Corneal oedema after cataract surgery: predisposing factors and corneal graft outcome. (medscape.com)
- Most cataract surgery is performed as an outpatient procedure with very low complications, high rates of success, and fast recovery. (healthnews.com)
- However, the risk for vitreous loss is increased in aniridia, and cataract formation or progression may occur with inadvertent damage to the lens during surgery. (medscape.com)
- Cataract removal is surgery to remove a clouded lens ( cataract ) from the eye. (medlineplus.gov)
- Cataract surgery is an outpatient procedure. (medlineplus.gov)
- Laser surgery: The doctor guides a machine that uses laser energy to make the incisions and soften the cataract. (medlineplus.gov)
- If you have cataracts in both eyes, your doctor may suggest waiting at least 1 to 2 weeks between each surgery. (medlineplus.gov)
- Cataract surgery is usually done if you cannot see well enough because of cataracts. (medlineplus.gov)
- Cataracts usually do not permanently damage your eye, so you and your eye doctor can decide when surgery is right for you. (medlineplus.gov)
- Cataract Surgery Methods: Which Is Right for You? (healthnews.com)
- The only proven treatment for cataracts is lens replacement surgery. (healthnews.com)
- This article discusses the different options for cataract surgery and which might be best for you. (healthnews.com)
- There are three main types of cataract surgery that are widely used today. (healthnews.com)
- Three newborns with cataract and severe anterior uveitis underwent cataract surgery. (cdc.gov)
- The number of eye surgeons is adequate but the accessibility of cataract surgical services in rural areas and the affordability of surgery to large sections of society are major constraints. (nih.gov)
- ABSTRACT This study aimed to determine the trends in outpatient cataract surgery and its determinants in the Islamic Republic of Iran between 2006 and 2010. (who.int)
- In this cross-sectional study, 106 cataract surgery centres were selected in all provinces by multistage randomized cluster sampling. (who.int)
- They show me a lot of photos: traumatic dislocated lens, post-trabeculectomy flat anterior chamber, capillary hemanigioma, Brown's syndrome, Morgagnian's cataract, molluscum contagiosum, epithelial downgrowth, combined surgery in hypermature catarect, surgery on inferior oblique muscle. (mrcophth.com)
- To investigate the long-term incidence of age-related cataract and cataract surgery in the Age-Related Eye Disease Study (AREDS) cohort. (emmes.com)
- Progression from a baseline status of no or mild lens opacity to at least moderate severity was analyzed and cumulative incidence estimated rates were calculated for each lens opacity type and cataract surgery stratified by age, sex, race, age-related macular degeneration category, multivitamin (Centrum) use and history of diabetes. (emmes.com)
- The 5- and 10-year incidence rates of all cataract types and cataract surgery were significantly higher with increasing age. (emmes.com)
- The procedures performed most often during outpatient surgery visits included endoscopies of the large intestine (5.8 million) and small intestine (3.5 million) and extraction of lens for cataract surgery (3.1 million). (cdc.gov)
- The leading diagnosis for outpatient surgery visits was cataract, with 3 million visits, followed by benign tumor (neoplasm) with 2 million visits and malignant tumor with 1.2 million visits. (cdc.gov)
- In the absence of any medical cure, surgery remains the mainstay of cataract treatment. (lifepositive.com)
- In case cataract develops, due to an injury in young children, it is important to undergo an immediate surgery before a squint or cross-eyes develop. (lifepositive.com)
- Purpose To evaluate the role of perioperative oral antibiotics in the prevention of acute infective endophthalmitis (IE) after cataract surgery. (bvsalud.org)
- ABSTRACT Purpose: To present the results of a retrospective study regarding the clinical and economic impact of intracameral cefuroxime administration to prevent endophthalmitis during cataract surgery in a referral hospital. (bvsalud.org)
- Methods: This study included 16,902 eyes from patients who had undergone cataract surgery between 2013 and 2017. (bvsalud.org)
- Senile cataract: Most people above fifty develop some degree of cataract. (lifepositive.com)
- Most cataract surgeries are performed under local anesthesia with mild sedation and patients go home the same day. (healthnews.com)
- The number of centres in each province was determined from the number of cataract operations and the number of patient charts examined in each centre was proportionate to the number of cataract operations in that centre. (who.int)
- While the type of cataract and the position of opacities vary from person to person, the most common site for a cataract is in the main body of the lens followed by opacity in the centre of the lens. (lifepositive.com)
- Well-developed cataracts appear as gray, white, or yellow-brown opacities in the lens. (msdmanuals.com)
- Ocular anterior segment in 3 newborn infants with bilateral total cataract and anterior uveitis related to endogenous Spiroplasma ixodetis infection. (cdc.gov)
- Cataract and uveitis are rare in newborns but potentially blinding. (cdc.gov)
- We describe 3 newborns in France who had cataract and intraocular inflammation and in whom S. ixodetis was detected in ocular samples ( Table ). (cdc.gov)
- Rubella (viral infection), syphilis (sexually transmitted disease during pregnancy), and abnormalities of the endocrine glands can cause cataract in newborns. (lifepositive.com)
- Editor's Note: It has been a great pleasure and an honor to have been able to work with the editorial staff of Ophthalmology Times in creating the Cataract Corner column over the past 5 years. (ophthalmologytimes.com)
- OIG alleged that Seton submitted claims to Medicare for cataract extraction procedures when it did not supply the specialized Intraocular Lens (IOL) and should not have been reimbursed for the IOL supply. (hhs.gov)
- Long-term incidence rates of type-specific cataract can be useful in designing clinical studies of age-related cataract. (emmes.com)
- As a cataract develops, the lens becomes cloudy. (medlineplus.gov)
- Cataracts occur with aging. (msdmanuals.com)
- Over-exposure to X-rays during the first three months of pregnancy increases the risk of inborn cataract. (lifepositive.com)
- These depend upon the type and severity of the cataract. (lifepositive.com)
- The present case-control study consisted of 186 patients (108 females, 78 males) with cataract and 195 gender-matched healthy controls (111 females, 84 males) were randomly selected from unrelated volunteers in the same clinic. (molvis.org)
- Such cataracts reduce visual acuity more when the pupil constricts (eg, in bright light, during reading). (msdmanuals.com)
- The null genotype of GSTM1 increased the risk of cataract (OR=1.51, 95%CI: 1.01-2.26, p=0.045). (molvis.org)
- 0.3 in the univariate analysis were included in the analysis for investigating the additive effects of the genotypes and work place on risk of cataract. (molvis.org)
- Statistical analysis showed that the risk of cataract increased as a function of number of putative high risk factors (χ 2 =8.001, p=0.005). (molvis.org)
- Natural Medicines Comprehensive Database (La Base Exhaustiva de Datos de Medicamentos Naturales) clasifica la eficacia, basada en evidencia científica, de acuerdo a la siguiente escala: Eficaz, Probablemente Eficaz, Posiblemente Eficaz, Posiblemente Ineficaz, Probablemente Ineficaz, Ineficaz, e Insuficiente Evidencia para Hacer una Determinación. (medlineplus.gov)
- Besides, chemical substances like zinc chloride, steroids and prolonged intake of medicines for nausea and psychiatric disorders can cause cataract. (lifepositive.com)
- A non-penetrating injury may cause cataract several months or years after the injury. (lifepositive.com)
- A cataract is a congenital or degenerative opacity of the lens. (msdmanuals.com)
- Ten-year incidence rates of age-related cataract in the Age-Related Eye Disease Study (AREDS): AREDS report no. 33. (emmes.com)
- Your surgeon will then use an instrument called a "chopper" or "cracker" that will break up the hard cataract nucleus into finer pieces. (healthnews.com)