Tissues etiology of ocular vision ocular. Medical search. Frequent questions

Abnormal basement membrane, abnormal or deficient hemidesmosomes, defective anchoring system, and accumulation of collagenous debris between and beneath epithelial cells result in easy slippage or tearing of the basal cells from the underlying connective tissue. (entokey.com)
It's a condition characterized by the thickening of the connective tissue around your shoulder, which leads to stiffness and pain. (healthline.com)
The sclera, a dense connective tissue made of collagen and elastin, encapsulates the eye, giving it structure and rigidity. (reviewofoptometry.com)
This yellowish lesion is a degeneration of elastic tissue and subepithelial collagen with hyalinized connective tissue that does not often involve the cornea. (reviewofoptometry.com)
Diagnose and treat Non-infectious keratitis including marginal keratitis associated with connective tissue disorders or hypersensitiy reaction to infectious etiology, neurotrophic ulcer, exposure keratopathy , central ulcerative keratitis, epitheliopathies, , and interstitial keratitis. (tilganga.org)
Management of tear film dysfunction associated with SJS syndrome, connective tissue disorders, herpetic eye diseases, sjogren's syndrome or idiopathic. (tilganga.org)

[4] Cogan syndrome is characterized by recurrent ocular inflammation as well as hearing loss that can lead to deafness if left untreated. (aao.org)
The local immune response results in skin blisters or ocular inflammation depending on which tissues are affected. (eyewiki.org)
This is a strong predictor of ocular inflammation and corneal denervation in HZO, especially if both branches of the nasociliary nerve are involved. (eyewiki.org)
Corneal epithelial defects, decreased corneal sensation, and ocular inflammation in any of the layers of the eye also correlate with the diagnosis. (eyewiki.org)
Exclusion criteria were as follows: previous intraocular surgery, history of conjunctivitis or any ocular infection within the previous 3 months, intraocular inflammation, or any eye disease. (mindunwindart.com)
Dear Editor, Endophthalmitis refers to the inflammation of the ocular cavities and their immediate adjacent structures without extension beyond the sclera, usually secondary to. (annals.edu.sg)
The integrity of the conjunctiva and sclera is crucial for healthy eyes, and when it is compromised by abnormalities or inflammation, the ocular system quickly becomes chaotic. (reviewofoptometry.com)
Inflammation is also seen as a response to tissue injury in the process of wound healing. (lecturio.com)

Ocular ischemic syndrome encompasses the ocular signs and symptoms that result from chronic vascular insufficiency. (medscape.com)
Describe presenting symptoms associated with ocular adiaspiromycosis. (cdc.gov)
[2] The classic form of Cogan syndrome is diagnosed when a patient develops vestibular auditory symptoms within two years of ocular symptoms. (aao.org)
Patients with the atypical form of Cogan syndrome typically present with inflammatory ocular manifestations, such as episcleritis and choroiditis, with or without interstitial keratitis along with audiovestibular symptoms that are different from the Meniere-like symptoms seen in the typical form of Cogan syndrome. (aao.org)
[1] Therefore, understanding the ocular and systemic symptoms is critical for the diagnosis. (aao.org)
Identifying systemic medications as the etiology of ocular signs and symptoms in a geriatric patient. (geriatricfastfacts.com)
Recurrent corneal erosion syndrome (RCES) is characterized by episodes of spontaneous breakdown of the corneal epithelium associated with symptoms ranging from ocular discomfort to severe pain. (entokey.com)

Although the ocular pathogenesis of Cogan syndrome is not fully understood, it has been postulated to be an autoimmune disease in which autoantibodies target corneal, inner ear, and endothelial antigens. (aao.org)
[1] [8] Corneal tissue and cochlea from patients with CS have showed lymphocytic and plasma cell infiltration, indicating that Cogan syndrome is indeed an autoimmune disorder. (aao.org)
in a corneal transplant technique known as deep anterior lamellar keratoplasty (DALK) the donated corneal tissue replaces the corneal stroma and epithelium only. (merckmanuals.com)
The migrated cells reduce the corneal stromal edema and vision improves. (merckmanuals.com)
Patients can develop vision-threatening sequellae, such as a corneal ulcer, and they may have an underlying systemic disorder. (symptoma.com)
Diagnose and manage the corneal infection (bacterial, viral, fungal, protozoal, chlamydial ) Medical and surgical management of corneal thinning and perforation, including techniques of pharmacological manipulation, application of tissue glue. (tilganga.org)

Therefore, although the orbit is not a fully enclosed space, it follows pressure-volume dynamics with a pathophysiology akin to other compartment syndromes, in which increased tissue pressures in an enclosed space lead to decreased perfusion. (medscape.com)
The pathophysiology of myopia is not yet fully determined and its etiology is multifactorial. (researchsquare.com)

[2] The interstitial keratitis can lead to severe photophobia, lacrimation, eye pain, eye redness, blurred visions, and can flare up sporadically over many years before quieting. (aao.org)
On presentation, she also reported photophobia, blurry vision, and a foreign body sensation in her left eye (OS). (eyerounds.org)
Independently from the cause, both may increase evaporation with drying of the ocular surfaces resulting in pain , tearing, and photophobia. (symptoma.com)

Systemic medications can deposit in ocular tissues such as tde cornea, lens, and retina resulting in drug toxicity. (geriatricfastfacts.com)
It really is secreted with the ciliary features and body to supply nutrition and remove waste materials from avascular tissue [2], aswell as develop the intraocular pressure that maintains the convex form of the cornea. (mindunwindart.com)
Ocular cicatricial pemphigoid (OCP), commonly known as a subtype of mucous membrane pemphigoid, is a bilateral, progressive autoimmune conjunctivitis, leading to cicatrization and shrinkage of the conjunctiva with opacification of the cornea. (reviewofoptometry.com)

Conjunctivitis-typically a result of infection, allergy or irritation-is characterized by conjunctival hyperemia, ocular discharge and, depending on the etiology, discomfort and itching. (reviewofoptometry.com)

5 Histopathological analysis of ocular muscles in congenital ptosis found dystrophic levator muscles with the replacement of myocytes by a combination of adipocyte and fibrous tissue. (qoves.com)
The findings suggest congenital ptosis to be a consequence of abnormal development in ocular muscles at a histological level. (qoves.com)
Although there is no possible way to prevent congenital eyelid ptosis, adult onset ptosis may be prevented in cases where the etiology is an underlying condition such as diabetes. (qoves.com)

The most common etiology of ocular ischemic syndrome is severe unilateral or bilateral atherosclerotic disease of the internal carotid artery or marked stenosis at the bifurcation of the common carotid artery. (medscape.com)
Rarely, eye floaters may be associated with significant ocular disease, including vitreous bleeding or hemorrhage , retinal detachment , severe ocular injury, or diabetic retinopathy . (emedicinehealth.com)
Bilateral circumferential soft tissue densities were seen in the extraconal regions of the orbit with severe proptosis. (contemporarypediatrics.com)
Microscopic examination of tissue samples obtained from patients with severe ptosis revealed an almost complete absence of striated muscle. (qoves.com)

However, patients with better visual acuity at presentation are more likely to retain good final vision. (medscape.com)
The presence of iris neovascularization is associated with significantly lower vision, with 97% of cases resulting in a final visual acuity of count fingers or worse. (medscape.com)

Optometrists know that vision screenings are not enough to fully reveal undetected vision problems such as amblyopia, latent refractive error, systemic diseases and learning disorders, many of which vision therapy can help remedy. (reviewofoptometry.com)
Bilateral PANDO is especially unusual in this age group and the presence of a bilateral obstruction demands careful consideration to rule out the possibility of an underlying systemic etiology. (eyerounds.org)

Following shifts in gut bacterial composition, the immune system surpasses microbial tolerance and progresses to an inflammatory state, which can induce tissue damage throughout the body and promote disease pathogenesis. (springer.com)
Aqueous humor (AH) supports avascular tissues within the anterior segment of the eye, maintains intraocular pressure, and potentially influences the pathogenesis of ocular diseases. (mindunwindart.com)

See The Case of the Middle-Aged Woman with Sudden Unilateral Vision Loss , a Critical Images slideshow, to help identify and treat malignant intraocular tumors. (medscape.com)
Finally, increased intraocular (globe) pressure from traumatic intraocular hematomas may cause pressure-related decreased ocular perfusion similar to that caused by mass lesions or thyroid-associated orbitopathy . (medscape.com)
Due to rotational eye movements, gravitational and inertial forces or contracture of intraocular fibroproliferative tissue, vitreous currents force fluid through the retinal breaks and progressively extend the retinal detachment. (institut-vision.org)

In this review, we describe some evidence, largely from rodent studies, that supports the possible role of a dysbiotic gut microbiota in the onset and exacerbation of ocular diseases, primarily diabetic retinopathy, age-related macular degeneration, choroidal neovascularization, and uveitis. (springer.com)
The focus of this brief review is to describe the alterations in the gut microbiota that may exacerbate ocular phenotypes, including diabetic retinopathy, age-related macular edema, choroidal neovascularization, uveitis, and Sjögren's disease. (springer.com)

Aberrations in the gut microbiota have been shown to be associated with ocular diseases in both human and animal studies. (springer.com)
Future studies of the gut microbiota and its relationship with ocular disease will increase our understanding of the gut-eye axis and lead to innovative therapeutic approaches to treating ocular diseases. (springer.com)

[ 13 ] Ocular ischemic syndrome is bilateral in around 20% of cases. (medscape.com)
A pinguecula is a vascularized growth of tissue, often bilateral, situated at the nasal or temporal limbus. (missionforvisionusa.org)
A maxillofacial and brain CT scan revealed bilateral destructive soft tissue masses in the region of the maxillary sinuses. (contemporarypediatrics.com)
Bilateral low vision and blindness was detected in 347 people , 172 males and 175 females. (who.int)

Hence, comparison of the aqueous humor TGF-β2 level between patients with open-angle glaucoma (OAG) and controls would provide direct evidence for the role of TGF-β2 in the etiology of OAG. (molvis.org)
Most patients with ocular ischemic syndrome present with gradual vision loss or pain. (medscape.com)
[ 4 , 9 , 10 ] Ocular ischemic syndrome is more likely to develop in patients with poor collateral circulation between the two internal carotid arteries or between the internal and external carotid arteries. (medscape.com)
Patients with adequate collateral circulation may not develop ocular ischemic syndrome even if the internal carotid artery is totally occluded. (medscape.com)
Patients with ocular ischemic syndrome may show decreased blood flow in the retrobulbar vessels. (medscape.com)
Ocular ischemic syndrome mainly affects elderly patients, with a mean age of 65 years. (medscape.com)
Ocular ischemic syndrome is uncommon in patients younger than 50 years. (medscape.com)
Patients with ocular ischemic syndrome have an overall poor visual prognosis. (medscape.com)
A significant proportion of patients with acute PVD develop an associated retinal tear that can lead to RD and, if left untreated, permanent vision loss. (institut-vision.org)
In some cases patients describe a recent history of ocular trauma or surgery. (institut-vision.org)
Patients with GPC will typically report ocular irritation, redness, itching, and mucus accumulation on the inner canthus upon awakening. (ps-neft.ru)
Use of this drug is contraindicated in the presence of retinal or visual field changes either attributable to 4-aminoquinoline compounds or to any other etiology, and in patients with known hypersensitivity to 4-aminoquinoline compounds. (drugs.com)
Methods The study subjects were patients who were scheduled to undergo standard cataract surgery at a tertiary referral center, Price Vision Group (Indianapolis, IN). (mindunwindart.com)

The role of ultraviolet radiation (UVR) exposure in the aetiology of retinal degeneration has been debated for decades with epidemiological evidence failing to find a clear consensus for or against it playing a role. (nature.com)
Eliciting an accurate history on timing, type, and duration of radiation exposure and on ocular protection is key. (entokey.com)
The etiology appears to arise from the effects of environmental elements such as wind, dust and UV light exposure. (reviewofoptometry.com)

Photons of light falling on the light-sensitive cells of the retina (photoreceptor cones and rods) are converted into electrical signals that are transmitted to the brain by the optic nerve and interpreted as sight and vision. (wikipedia.org)
Presumably, the central retinal artery is afforded some protection from direct compression by its anatomic position within the optic nerve and from increasing tissue pressures by its higher systolic pressure. (medscape.com)
Posteriorly, it merges with the meninges at the optic nerve, penetrates the globes and joins with choroidal tissue from the lamina cribrosa. (reviewofoptometry.com)

Orbital cellulitis is infection of the orbital tissues posterior to the orbital septum. (msdmanuals.com)
Ocular breaks tend to locate more posterior than the flap breaks. (institut-vision.org)

Dermatome distribution pain and rash with associated ocular findings strongly suggest HZO. (eyewiki.org)
Continuous variables in the groups were com- correlated with the ocular findings of the subject, a pattern pared using the independent-samples t -test and the cat- visual evoked potential test was ordered. (who.int)

Possible irritation SIGNS Redundant, loose lid tissue WORK-UP Thorough history. (odclinicals.com)
She describes tears that run down the front of her face and denies any ocular irritation. (eyerounds.org)

A characteristic feature of Wilson's disease - the accumulation of copper in various organs and tissues, mainly in the liver, and the basal ganglia. (medicalformat.com)

Cellular and antibiotic therapies, intermittent fasting, and altered diet have been shown to restructure the gut microbiota and decrease ocular pathologies. (springer.com)
Furthermore, proteins within the AH are usually involved with development of many eye illnesses [13,14], and looking into the AH proteome shall facilitate era of new hypotheses about the etiology of such pathologies. (mindunwindart.com)

Organized fibroglial bands with traction retinal detachment and vitreous hemorrhage may occur, along with potential complications such as glaucoma or permanent vision loss. (medscape.com)

The biopsy specimen from the right maxillary sinus showed soft tissue infiltration with myeloid leukemic cells, consistent with a chloroma. (contemporarypediatrics.com)

Erosion of the tumor into blood vessels in adjacent tissues, or areas of necrosis within the tumor, can lead to hyphema or vitreous hemorrhage. (medscape.com)

Ocular Pathology: What is a pinguecula? (missionforvisionusa.org)
Here, we investigate interactions between the gut microbiota and ocular pathology and their implications for progression of disease, and propose several potential therapeutic approaches aimed at promoting gut microbial homeostasis and reducing adverse ocular outcomes. (springer.com)

Separation and disruption of the overlying ciliary epithelium decreases its production of aqueous humor with consequent ocular hypotension. (medscape.com)

[8] Cogan syndrome most commonly affects young adults between 20-30 years old but can be seen at any age, and while the etiology is unknown, infectious triggers, such as upper respiratory tract infection, diarrhea, dental infection, or recent immunization have been reported. (aao.org)

Pathogens vary by etiology and patient age. (msdmanuals.com)
[12] Similarly, there was a variation in the in vitro efficacy of antibacterial agents against bacterial pathogens causing ocular infections according to the local population. (medithesis.in)

It is typically secondary to facial trauma or a surgical procedure (see Etiology). (medscape.com)
Subperiosteal hematoma caused by trauma or surgery may initially produce similar compressive features that are followed by compartment syndrome tissue-pressure dynamics as volume increases. (medscape.com)

T wo of the most protective structures of the ocular system are the conjunctiva and sclera. (reviewofoptometry.com)
The conjunctiva, a thin layer of tissue lining the eye and eyelids, contributes to homeostasis of the tear film, provides a layer of protection from foreign material and wards off infection. (reviewofoptometry.com)
The conjunctiva - is the tissue lining the inner lids to the sclera or eyeballs itself. (snaketracks.com)

New-onset eyelid ptosis in elderly individuals can be due to neurogenic, myogenic, traumatic, or aponeurotic etiology. (qoves.com)

Herpes Zoster Ophthalmicus (HZO), commonly known as shingles, is a viral disease characterized by a unilateral painful skin rash in one or more dermatome distributions of the fifth cranial nerve (trigeminal nerve), shared by the eye and ocular adnexa. (eyewiki.org)

On clinical examination with gonioscopy, the filtration tissues within the anterior chamber angle appear normal in persons with juvenile glaucoma. (medscape.com)
[ 2 ] Pathologic examination has found thickened tissue and abnormal deposit of extracellular tissue in the trabecular meshwork between the anterior chamber and the Schlemm canal. (medscape.com)
For years, federal agencies and school systems have communicated that a vision screening qualifies as a comprehensive examination by an eye care provider. (reviewofoptometry.com)

This first volume covers the visual sensory system, the autonomic nervous system, the ocular motor system, the eyelid, facial pain and headache, and nonorganic disease. (symptoma.com)

TGF-β2, a 25 kDa polypeptide, is synthesized by the tissue in the anterior segment of eye. (molvis.org)
This vitreoretinal traction may pull on the thin anterior retinal tissues strongly enough to create a small hole in the retina. (emedicinehealth.com)
Roughly a third of people with AS also have anterior uveitis, which can cause blurred vision and other changes to your vision. (healthline.com)

If the patient is unable to meet the significant demands of ocular lubrication due to physical or cognitive deficits, admission is required. (entokey.com)

Once the diagnosis of blepharoptosis is confirmed, further investigations, family history, and personal medical history will be obtained by the physician to determine the etiology and design a suitable treatment plan. (qoves.com)

It is postulated that the decreased vascular perfusion results in tissue hypoxia and increased ocular ischemia, leading to neovascularization. (medscape.com)

Open to individuals involved or interested in the banking of cells, organs, eyes, or tissues who support our objectives, policies, and ethical standards. (aatb.org)
Between one-third and one-half of affected individuals have microphthalmia as part of a syndrome that affects other organs and tissues in the body. (medlineplus.gov)

The incidence of ocular ischemic syndrome is estimated to be 7.5 cases per 1 million population per year but is likely underdiagnosed. (medscape.com)

This form of vision-threatening ischemia should be evaluated by a specialist to consider prompt operative decompression/hematoma. (medscape.com)

Ocular ischemic syndrome (OIS) is a rare eye disease caused by chronic hypoperfusion of the common or internal carotid artery. (medscape.com)
[ 12 ] Among individuals with carotid occlusive disease, approximately 4% have ocular ischemic syndrome. (medscape.com)
Smoking cessation, a diet low in fat and sugar, and regular exercise can decrease the rate of vascular disease and potentially lower the likelihood of developing ocular ischemic syndrome. (medscape.com)
Cogan's syndrome (also Cogan syndrome) is an uncommon disease seen mostly in young adults that can severely affect vision and hearing. (aao.org)
[2] [5] Interstitial keratitis is the most commonly seen ocular manifestation of Cogan's syndrome. (aao.org)

The ocular tissue where these tumors arise, the uvea, is a densely pigmented layer that lies for the most part between the sclera and the retina. (medscape.com)

[8] There is also a delay of more than two years between the ocular and vestibular auditory manifestations in the atypical form. (aao.org)

Ocular features of carotid occlusive disease. (medscape.com)
We conducted an epidemiologic investigation of an outbreak of ocular disease among children to determine whether the disease was linked to Emmonsia sp. (cdc.gov)
Cadaveric donor tissue can be used unless the donor is suspected of having a communicable disease. (merckmanuals.com)
Best's Disease - a form of two-way central (macular) retinal pigment abiotrophy leading to the degeneration of photoreceptors and macular significant vision loss. (medicalformat.com)

Colobomas are missing pieces of tissue in structures that form the eye. (medlineplus.gov)

The purpose of this study was to define the baseline disorders causing low vision and blindness in accordance with World Health Organization criteria in an adult population in Izmir. (who.int)

Describe the frequency of ocular lesions associated with adiaspiromycosis. (cdc.gov)

B-scan ocular ultrasound upon initial presentation. (eyerounds.org)

The underlying mechanism of ptosis is attributed to a dysfunction of the ocular muscles or can occur due to damage to the nerves supplying these muscles. (qoves.com)

Ocular saccades associated with rapid eye movement phase of sleep can exert shearing forces on the loose or poorly attached epithelium causing erosions to occur, the pain thus waking the patient, which is subtly different from experiencing pain on waking or eye opening. (entokey.com)

For patient education information, see the Eye and Vision Center , as well as Black Eye . (medscape.com)

Only a qualified eye doctor can determine whether or not the symptom of eye floaters represents a serious ocular condition. (emedicinehealth.com)

Ocular breaks are characterized by flap shape and acute onset. (institut-vision.org)

Anatomy40

Organisms4

Diseases102

Chemicals and Drugs11

Analytical, Diagnostic and Therapeutic Techniques and Equipment51

Psychiatry and Psychology23

Phenomena and Processes29

Disciplines and Occupations3

Technology, Industry, Agriculture2

Information Science2

Named Groups1

Health Care9

Geographicals1

Connective tissue6

Inflammation8

Symptoms7

Corneal6

Pathophysiology2

Photophobia3

Cornea3

Conjunctivitis1

Congenital3

Severe4

Visual acuity2

Systemic2

Pathogenesis2

Intraocular3

Diabetic retinopathy2

Diseases2

Bilateral4

Patients13

Exposure3

Optic nerve3

Posterior2

Findings2

Irritation2

Ganglia1

Pathologies2

Retinal detachment1

Biopsy1

Vitreous1

Pathology2

Aqueous1

Infectious1

Pathogens2

Trauma2

Conjunctiva3

Traumatic1

Cranial-nerve1

Examination3

Eyelid1

Anterior3

Lubrication1

Diagnosis1

Perfusion1

Organs2

Incidence1

Ischemia1

Syndrome5

Tumors1

Atypical1

Disease4

Structures1

Blindness1

Lesions1

Ultrasound1

Ptosis1

Pain1

Patient1

Floaters1

Onset1