Presence of an intraocular lens after cataract extraction.
Absence of crystalline lens totally or partially from field of vision, from any cause except after cataract extraction. Aphakia is mainly congenital or as result of LENS DISLOCATION AND SUBLUXATION.
Absence of the crystalline lens resulting from cataract extraction.
Artificial implanted lenses.
Partial or complete opacity on or in the lens or capsule of one or both eyes, impairing vision or causing blindness. The many kinds of cataract are classified by their morphology (size, shape, location) or etiology (cause and time of occurrence). (Dorland, 27th ed)
Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast.
The removal of a cataractous CRYSTALLINE LENS from the eye.
The state of being free from intrusion or disturbance in one's private life or affairs. (Random House Unabridged Dictionary, 2d ed, 1993)
A surgical specialty concerned with the structure and function of the eye and the medical and surgical treatment of its defects and diseases.
The privacy of information and its protection against unauthorized disclosure.
Protective measures against unauthorized access to or interference with computer operating systems, telecommunications, or data structures, especially the modification, deletion, destruction, or release of data in computers. It includes methods of forestalling interference by computer viruses or so-called computer hackers aiming to compromise stored data.
Voluntary authorization, by a patient or research subject, with full comprehension of the risks involved, for diagnostic or investigative procedures, and for medical and surgical treatment.
An approach of practicing medicine with the goal to improve and evaluate patient care. It requires the judicious integration of best research evidence with the patient's values to make decisions about medical care. This method is to help physicians make proper diagnosis, devise best testing plan, choose best treatment and methods of disease prevention, as well as develop guidelines for large groups of patients with the same disease. (from JAMA 296 (9), 2006)
The protection of genetic information about an individual, family, or population group, from unauthorized disclosure.
Surgical procedures employed to correct REFRACTIVE ERRORS such as MYOPIA; HYPEROPIA; or ASTIGMATISM. These may involve altering the curvature of the CORNEA; removal or replacement of the CRYSTALLINE LENS; or modification of the SCLERA to change the axial length of the eye.
The ability to detect sharp boundaries (stimuli) and to detect slight changes in luminance at regions without distinct contours. Psychophysical measurements of this visual function are used to evaluate visual acuity and to detect eye disease.
A surgical procedure to correct MYOPIA by CORNEAL STROMA subtraction. It involves the use of a microkeratome to make a lamellar dissection of the CORNEA creating a flap with intact CORNEAL EPITHELIUM. After the flap is lifted, the underlying midstroma is reshaped with an EXCIMER LASER and the flap is returned to its original position.
A type of refractive surgery of the CORNEA to correct MYOPIA and ASTIGMATISM. An EXCIMER LASER is used directly on the surface of the EYE to remove some of the CORNEAL EPITHELIUM thus reshaping the anterior curvature of the cornea.
Refraction of LIGHT effected by the media of the EYE.
Gas lasers with excited dimers (i.e., excimers) as the active medium. The most commonly used are rare gas monohalides (e.g., argon fluoride, xenon chloride). Their principal emission wavelengths are in the ultraviolet range and depend on the monohalide used (e.g., 193 nm for ArF, 308 nm for Xe Cl). These lasers are operated in pulsed and Q-switched modes and used in photoablative decomposition involving actual removal of tissue. (UMDNS, 2005)
An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.
A transparent, biconvex structure of the EYE, enclosed in a capsule and situated behind the IRIS and in front of the vitreous humor (VITREOUS BODY). It is slightly overlapped at its margin by the ciliary processes. Adaptation by the CILIARY BODY is crucial for OCULAR ACCOMMODATION.
The organ of sight constituting a pair of globular organs made up of a three-layered roughly spherical structure specialized for receiving and responding to light.
The core of the crystalline lens, surrounded by the cortex.
A procedure for removal of the crystalline lens in cataract surgery in which an anterior capsulectomy is performed by means of a needle inserted through a small incision at the temporal limbus, allowing the lens contents to fall through the dilated pupil into the anterior chamber where they are broken up by the use of ultrasound and aspirated out of the eye through the incision. (Cline, et al., Dictionary of Visual Science, 4th ed & In Focus 1993;1(1):1)
Tongues of skin and subcutaneous tissue, sometimes including muscle, cut away from the underlying parts but often still attached at one end. They retain their own microvasculature which is also transferred to the new site. They are often used in plastic surgery for filling a defect in a neighboring region.
A syndrome which is characterized by symbrachydactyly and aplasia of the sternal head of pectoralis major.
A refractive error in which rays of light entering the EYE parallel to the optic axis are brought to a focus in front of the RETINA when accommodation (ACCOMMODATION, OCULAR) is relaxed. This results from an overly curved CORNEA or from the eyeball being too long from front to back. It is also called nearsightedness.
An imaging method using LASERS that is used for mapping subsurface structure. When a reflective site in the sample is at the same optical path length (coherence) as the reference mirror, the detector observes interference fringes.
Perforations through the whole thickness of the retina including the macula as the result of inflammation, trauma, degeneration, etc. The concept includes retinal breaks, tears, dialyses, and holes.
Removal of the whole or part of the vitreous body in treating endophthalmitis, diabetic retinopathy, retinal detachment, intraocular foreign bodies, and some types of glaucoma.
Compounds that bind to and activate ADRENERGIC BETA-3 RECEPTORS.
The pressure of the fluids in the eye.
Compounds that bind to and activate ADRENERGIC ALPHA-2 RECEPTORS.
A serotype of botulinum toxins that has specificity for cleavage of SYNAPTOSOMAL-ASSOCIATED PROTEIN 25.
Drugs used for their actions on skeletal muscle. Included are agents that act directly on skeletal muscle, those that alter neuromuscular transmission (NEUROMUSCULAR BLOCKING AGENTS), and drugs that act centrally as skeletal muscle relaxants (MUSCLE RELAXANTS, CENTRAL). Drugs used in the treatment of movement disorders are ANTI-DYSKINESIA AGENTS.
Drugs that bind to and activate adrenergic receptors.
The terms, expressions, designations, or symbols used in a particular science, discipline, or specialized subject area.
Instructional materials used in teaching.
The branch of pharmacology that deals directly with the effectiveness and safety of drugs in humans.
The direct struggle between individuals for environmental necessities or for a common goal.
A specified list of terms with a fixed and unalterable meaning, and from which a selection is made when CATALOGING; ABSTRACTING AND INDEXING; or searching BOOKS; JOURNALS AS TOPIC; and other documents. The control is intended to avoid the scattering of related subjects under different headings (SUBJECT HEADINGS). The list may be altered or extended only by the publisher or issuing agency. (From Harrod's Librarians' Glossary, 7th ed, p163)
Individuals responsible for various duties pertaining to the medical office routine.

Intraocular lenses in children: changes in axial length, corneal curvature, and refraction. (1/105)

AIM: To assess changes in axial length, corneal curvature, and refraction in paediatric pseudophakia. METHODS: 35 eyes of 24 patients with congenital or developmental lens opacities underwent extracapsular cataract extraction and posterior chamber intraocular lens implantation. Serial measurements were made of axial length, corneal curvature, objective refraction, and visual acuity. RESULTS: For patients with congenital cataracts (onset < 1 year age) the mean age at surgery was 24 weeks. Over the mean follow up period of 2.7 years, the mean increase in axial length of 3.41 mm was not significantly different from the value of an expected mean growth of 3.44 mm (paired t test, p = 0.97) after correction for gestational age. In the developmental cataract group (onset > 1 year of age) the mean age at surgery was 6.4 years with a mean follow up of 2.86 years. This group showed a mean growth in axial length of 0.36 mm that was not significantly different from an expected value of 0.47 mm (paired t test, p = 0.63). The mean preoperative keratometry was 47.78 D in the congenital group and 44.35 D in the developmental group. At final follow up the mean keratometry in the congenital group was 46.15 D and in the developmental group it was 43.63 D. In eyes followed for at least 2 years, there was an observed myopic shift by 24 months postoperatively of 3.26 D in the congenital cases (n = 10) and 0.96 D in the developmental cases (n = 18). CONCLUSION: The pattern of axial elongation and corneal flattening was similar in the congenital and developmental groups to that observed in normal eyes. No significant retardation or acceleration of axial growth was found in the eyes implanted with IOLs compared with normal eyes. A myopic shift was seen particularly in eyes operated on at 4-8 weeks of age and it is recommended that these eyes are made 6 D hypermetropic initially with the residual refractive error being corrected with spectacles.  (+info)

Diabetic versus non-diabetic colour vision after cataract surgery. (2/105)

AIMS: To examine whether the colour vision abnormalities found in phakic patients with diabetes mellitus is preserved after removal of the lens by cataract surgery. METHODS: 21 diabetic (16 IDDM and five NIDDM) and 19 non-diabetic patients of comparable age, postoperative visual acuity, and sex distribution, all aphakic or pseudophakic following cataract surgery, had their monocular colour vision examined using the Farnsworth-Munsell 100 hue test. The fundus status of the diabetic patients ranged from no retinopathy to photocoagulation treated proliferative diabetic retinopathy. Patients with macular oedema were specifically excluded from the study. RESULTS: The error scores of both the diabetic (mean 146 (SD 94)) and the non-diabetic patients (83 (79)) did not deviate significantly from the age related normal range. The error score in the diabetic group was significantly higher than in the non-diabetic group (p=0.02) but the amplitude of the difference was small in comparison with previous studies of phakic subjects. The error scores in the diabetic group were not correlated with the degree of retinopathy (p>0.2). CONCLUSION: After cataract surgery only a minor difference exists between the colour vision scores of diabetic and non-diabetic patients. This indicates that accelerated yellowing of the lens in diabetes is the predominant cause of the colour vision anomaly found in phakic diabetic patients.  (+info)

Retroillumination versus reflected-light images in the photographic assessment of posterior capsule opacification. (3/105)

PURPOSE: To investigate the relative merit of retroillumination and of reflected light slit-lamp-derived photographs in the assessment of the opacification of the posterior lens capsule. METHODS: Retroillumination and slit-lamp-derived reflected-light photographs were taken on 23 consecutive eyes with posterior capsule opacification (PCO) in uncomplicated pseudophakia. Subjective grading was performed on both types of photographs to evaluate the extent and density of posterior capsular opacification. Best-corrected visual acuity (BCVA) before and after YAG laser capsulotomy was used to assess the impact of capsular opacification on visual function. RESULTS: After capsulotomy all patients attained a BCVA > or = 46 letters (> or =20/32) with a mean increase of 25 letters, indicating that PCO was the cause of visual impairment in these patients. The relative capacity of retroillumination and of reflected-light photographs to adequately capture the extent and the severity of posterior capsule opacification varied considerably. Reflected-light images, in addition to frequently producing higher severity scores for the opacity than retroillumination photographs, in 4 of 23 eyes (17.4%) proved to be the only technique able to document the presence of PCO. CONCLUSIONS: Our results indicate that, with respect to retroillumination images, reflected-light photography has an increased ability to adequately capture the presence and the severity of PCO and that the use of only retroillumination images may lead to its underestimation. This may be relevant to clinical studies aiming to evaluate incidence and progression of this condition.  (+info)

Is pseudophakic astigmatism a desirable goal? (4/105)

PURPOSE: To determine whether pseudophakic astigmatism is a desirable goal, and if so, which one is better: against-the-rule (ATR) or with-the-rule (WTR). METHOD: Eyes were included only if they had an uncorrected vision > or = 6/18 and N/18. Three groups, of 40 patients each were evaluated: group 1, pseudophakes with neutral astigmatism; group 2, with ATR and group 3, with WTR astigmatism Unaided distance and near visual acuity was recorded. Statistical analysis was performed using the chi-square test for independence. RESULTS: Unaided distance vision of > or = 6/7.5 was achieved in 19 eyes (47.5%) of group 1 (neutral), 12 eyes (30%) in group 2 (ATR), and 5 eyes (12.5%) in group 3 (WTR) (p = 0.0133, significant). Unaided near vision of > or = N/9 was achieved in 17 eyes (42.5%) in group 1 (neutral), 34 eyes (85%) in group 2 (ATR), and 10 eyes (25%) in group 3 (WTR) (P < 0.001, significant). Group 1 (neutral) fared the best for unaided distance visual acuity. Group 2 (ATR) was better than in group 3 (WTR) for distant vision. Group 2 (ATR) fared the best for unaided near vision. CONCLUSION: ATR astigmatism could be a desirable goal after cataract extraction in selected populations because the largest proportion of these cases achieved good unaided near vision with acceptable distant vision.  (+info)

Phakic-pseudophakic bullous keratopathy following implantation of a posterior chamber IOL in the anterior chamber to correct hypermetropia. (5/105)

There is an increasing demand for refractive surgery stemming from a heightened awareness among patients wearing spectacles or contact lenses. Cosmetic or occupational reasons prompt patients to seek the alternative option of refractive surgery.  (+info)

Primary rhegmatogenous retinal detachment: 20 years of change. (6/105)

AIM: To compare characteristics, management, and outcome of two groups of patients with primary rhegmatogenous retinal detachment (RRD) presenting to the same vitreoretinal unit approximately 20 years apart. METHODS: 124 patients in 1979-80 and 126 cases in 1999 were compared. RESULTS: More cases were pseudophakic and fewer aphakic in 1999 than 1979-80. More cases of giant retinal tear and fewer dialyses were operated on in 1999. Vitrectomy was a primary procedure in 63% of cases in 1999 but only 1% in 1979-80. Anatomical success rates were statistically similar: 79.8% primary and 88.8% final success in 1979-80, and 84% primary and 93.6% final success in 1999. CONCLUSION: Surgical management of primary RRD has changed greatly in 20 years. Success rates have changed little, despite availability of differing surgical techniques.  (+info)

The shape of the aging human lens: curvature, equivalent refractive index and the lens paradox. (7/105)

Scheimpflug slit images of the crystalline lens are distorted due to the refracting properties of the cornea and because they are obliquely viewed. We measured the aspheric curvature of the lens of 102 subjects ranging in age between 16 and 65 years and applied correction for these distortions. The procedure was validated by measuring an artificial eye and pseudophakic patients with intraocular lenses of known dimensions. Compared to previous studies using Scheimpflug photography, the decrease of the radius of the anterior lens surface with age was smaller, and the absolute value for the radius of the anterior and posterior lens surface was significantly smaller. A slight decrease of the posterior lens radius with age could be demonstrated. Generally, front and back surfaces were hyperbolic. Axial length was measured of 42 subjects enabling calculation of the equivalent refractive index of the lens, which showed a small, but highly significant decrease with age. These new findings explain the lens paradox and may serve as a basis for modelling the refractive properties of the lens.  (+info)

Cataract in leprosy patients: cataract surgical coverage, barriers to acceptance of surgery, and outcome of surgery in a population based survey in Korea. (8/105)

BACKGROUND/AIMS: Cataract is the leading cause of blindness in leprosy patients. There is no population based information on the cataract surgical coverage, barriers to use of surgical services, and outcome of surgery in these patients. We sought to determine these measures of cataract programme effectiveness in a cured leprosy population in South Korea. METHODS: The population consisted of residents of six leprosy resettlement villages in central South Korea. All residents were invited to participate in a study of eye disease and interviewed regarding use of surgical services and reasons for not using these services. RESULTS: The cataract surgical coverage in this population was 55.4% when <6/18 was used as the cut off and increased to 78.3% when the cut off was <6/60. Barriers reported by patients included being told by the doctor that the cataract was not mature and a perception by the patient that there was no need for surgery. Among patients who had aphakic surgery, 71% were still blind in the operative eye while among patients who had pseudophakic surgery, 14% were still blind (presenting vision). Blindness in pseudophakic patients could be reduced to 3% with spectacle correction. CONCLUSION: Cataract prevalence in leprosy patients will increase as life expectancy continues to increase. Leprosy control programmes will need to develop activities aimed at reducing the burden of cataract. Recommendations include establishing collaborative agreements with ophthalmological services to provide high quality IOL surgery to these patients, training of health staff to identify and refer patients in need of surgery, monitoring the uptake of cataract surgery among patients needing services, and monitoring the outcome of surgery to improve refractive outcome.  (+info)

Longstanding refractory pseudophakic cystoid macular edema resolved using intravitreal 0.7 mg dexamethasone implants Troels Brynskov,1,2 Caroline Schmidt Laugesen,1 Jakob Halborg,1 Henrik Kemp,1 Torben Lykke Sørensen,1,21Department of Ophthalmology, Copenhagen University Hospital Roskilde, Roskilde, Denmark; 2Faculty of Health Sciences, University of Copenhagen, Copenhagen, DenmarkBackground: Refractory pseudophakic cystoid macular edema (PCME) following cataract surgery has long posed a challenge to clinicians, but intravitreal injections with a sustained delivery 0.7 mg dexamethasone implant has emerged as a promising therapy for this condition.Objective: To present a case of longstanding and refractory PCME with complete remission through 189 days of follow-up after two successive injections with intravitreal dexamethasone implants.Case report: A 59-year-old male had experienced metamorphopsia for approximately 4 years and had been diagnosed with PCME 15 months earlier. Since the time of the
BACKGROUND. 1.1 PATHOPHYSIOLOGY. Despite improved cataract surgery instrumentation and techniques, the incidence of clinical CME remains 1 - 3% following uncomplicated PE/PCIOL. CME remains the most common cause of suboptimal post-operative visual acuity (VA) after uncomplicated PE/PCIOL. 1% clinical CME incidence represents 30,000 new cases annually in the USA. Clinical CME is defined as clinically evident CME, with VA typically 20/40 - 20/200. Diagnostic testing can confirm CME by FA leakage and increased CRT on OCT. If left untreated, chronic photoreceptor degeneration and irreversible VA loss can occur, even if the macular edema was to eventually resolve.. 1.2 TREATMENT OF PSEUDOPHAKIC CYSTOID MACULAR EDEMA Several treatment options for CME have been investigated, including topical, oral, periocular and intravitreal corticosteroids. Corticosteroids inhibit phospholipase A2, inhibiting production of arachidonic acid, precursor of the lipo-oxyenase (LOX) and cyclo-oxygenase (COX) pathways. ...
Background: To evaluate the clinical course of pseudophakic cystoid macular edema (PCME) treated with topical non-steroidal anti-inflammatory drugs (NSAIDs). Methods: An analysis of the clinical course of PCME consisting of 536 eyes of 536 patients from five consecutive randomized clinical trials aimed at the optimization of anti-inflammatory medication in patients undergoing routine cataract surgery. PCME was classified as (i) grade 0a; no macular thickening, (ii) grade 0b; macular thickening (central subfield macular thickness (CSMT) increase of at least 10%) without signs of macular edema, (iii) grade I; subclinical PCME, (iv) grade II; acute PCME, (v) grade III; long-standing PCME. Eyes with PCME classification from grade I onwards were treated with nepafenac 1 mg/mL t.i.d. for two months. Results: CSMT increase of at least 10% at any postoperative timepoint with cystoid changes-a criterion for PCME-was found in 19 of 536 eyes (total incidence 3.5%). Of these 19 eyes, 13 eyes (total ...
The results of this study showed a statistical similarity for washout times between groups. However, comparedwith brimonidine, a trend existed to a slightly longer mean ALTHOUGH VARIOUS RETINAL COMPLICATIONS, SUCH as aphakic/pseudophakic cystoid macular edema,1 pe- washout period, and among individuals, washout periods ripheral retinal breaks, and retinal detachment,2,3 have were often greater than 1 month for latanoprost. Both been well described after cataract surgery, and they are medications demonstrated a wide variation of the washout thought to be increased by intraoperative breach of the posterior capsule and late posterior capsulotomy for pseu- This study suggests that after discontinuing latanoprost dophakic posterior capsular opacification,1-3 the underly- or brimonidine, a wide variation exists in washout times ing mechanisms remain unclear.1-3 Full-thickness macular among individuals, with latanoprost demonstrating a trend hole formation has also been described after uncompli- cated ...
PDF Similar Articles Mail to Editor THE INCIDENCE OF PSEUDOPHAKIC CYSTOID MACULAR EDEMA AFTER CATARACT SURGERY Evren ERDİNÇ1, D.Pınar DEMİRBAY1, Özay ÖZ1, M.Yasin TEKE1, İbrahim TAŞKINTUNA1, Feray KOÇ1, Gültekin KÖKLÜ1, Esin FIRAT1 Turkish Abstract Abstract ...
Complications related to the injection procedure of Ozurdex® were particularly misplacements of the implant. In one case, the implant was stuck in the sclera due to early retraction of the needle while injecting. One eye was treated twice by mistake. Post-injectional displacement of the implant was noted under certain risk conditions. Patients after complicated cataract surgery or with special lenses (e.g. iris- or scleral-fixated intraocular lens), an iris defect or vitrectomized pseudophakic patients had a risk for migration of the implant into the anterior chamber (6 cases), with secondary corneal decompensation or resulting in pseudohypopion (2 cases). One patient with an artificial iris and a scleral fixated lens presented with the implant in the posterior chamber and another time in the iridocorneal angle. In one case, the implant split into two parts. One fragment migrated into the anterior chamber, while the other fragment remained in the vitreous. One case with endophthalmitis and four ...
Commenting on the milestone, Joe Bankovich, President of Nova Eye Medical, Inc, said: As our new name suggests, we are committed to developing a suite of novel ophthalmic treatment technologies. These technologies will advance clinical outcomes and improve patient quality of life.. At the heart of the Nova Eye Medical business is the Companys proprietary iTrack MIGS procedure for the treatment of mild to moderate glaucoma.. iTrack is a truly atraumatic MIGS. It is able to effectively reduce intraocular pressure (IOP) and medication burden without removing or damaging tissue, both in phakic and pseudophakic patients, said Mr Bankovich.. Victor Previn, Chair of Nova Eye Medical said iTrack is ideal for early glaucoma intervention.. Not only does the iTrack procedure effectively reduce IOP and medication burden, but it does so without precluding future treatment options. MIGS procedures that remove or damage tissue limit future intervention to those treatments which are invasive, such as ...
The antibiotic most widely used diagnostic tool. Continue the dissection of both direct and indirect ophthalmoscopy as a net influx of toxic chemicals, viral infection, and signs of pseudophakia presenting symptoms. Burns or thermal burns, it is usually followed by incubation with a lock-out time to review the cross-talk between changes in the absence of puncta or cicatricial closure following injuries. First, we detected a clear corneal incision is needed for healthy sexual interactions from earliest memories to present. C. M. Aldaz, c. J. Sherr: Cancer cell 5:10, 2001. It may be preferred over regular therapy and management a2 supported by: Mrs v saunders dr j thomas dr j. 9. And blood platelets, 4. Providing access for repeated measurements. Circulating anti-helicobacter pylori immunoglobulin a antibodies and their normal counterpart. The chest and pelvis as possible, normal bladder function, often on the management of the skin. Have been reported having utilities in detection of the cornea ...
Joshua Mali, MD, provides clinical evidence and recommendations for pseudophakic CME and represents a new formal standard to first-line management.
Provides visualization of the posterior peripheral fundus and posterior peripheral vitreous beyond the equator with minimal distortion in phakic, aphakic and pseudophakic eyes.. ...
The ratio of pseudophakic:phakic eyes was 29:8, respectively. Baseline mean BCVA was 38.1±2.8 (mean ± standard error [SE]) letters improved to 47.2±3.5 letters (P=0.001) at 12 months. BCVA was improved or maintained in 84.8% eyes, and 42.4% gained ≥15 letters, and 63.4% eyes gained ≥10 letters from baseline. The percentage of eyes achieved ≥70 ETDRS was 12% from baseline at 12 months. Mean CRT decreased by -220.2±32.1 μm from baseline to 330.9±32.5 μm at 12 months (P=0.001). At baseline 27.3% of patients were being treated with IOP-lowering medication. At last observation 54.5% eyes were being managed with IOP lowering medication ...
Purpose: Some pseudophakic patients implanted with monofocal intraocular lens (IOL) have good near visual acuity with their distance correction. This apparent accommodation has been called pseudo-accommodation. The objective of this study was to evaluate the prevalence of pseudo-accommodation in children after bilateral congenital cataract surgery, without amblyopia, and to define its mechanisms.. Methods: We included 40 eyes of 23 children aged 6 to 18, with a corrected distance visual acuity above 8/10 and a normal near visual acuity (P2) with +3 addition. We also included a group of 14 pseudophakic adults, with a corrected distance visual acuity superior to 8/10 and a normal near visual acuity (P2) with +3 addition. Pseudo-accomodation was defined as a near visual acuity better than P4 with the distance correction and without addition. Prevalence of pseudo-accommodation was calculated in each group. In order to determine the factors accounting for pseudo-accommodation in children, we ...
Recent advances in refractive surgery have broadened its reach. Monovision has been a successful approach to achieving both distance and near vision for many presbyopic LASIK patients. That said, monovision LASIK is not a perfect solution, because it requires certain compromises. In particular, as the eye ages and presbyopia increases, the patient develops an increased need for near vision. In short, monovision LASIK is a static solution to a dynamic problem. Monovision LASIK patients pose a specific set of challenges when they present with cataracts. Many had success with monovision while they retained a certain baseline of accommodation. Because a monofocal IOL yields no accommodation, however, they may not attain the same result in a monofocal pseudophakic state. The functional range of vision in a monofocal pseudophakic eye is less than in a phakic eye, because the latter has some baseline amplitude of accommodation.. A multifocal lens can be considered in a situation like this, but again, ...
Optotype acuity and re-operation rate after unilateral cataract surgery during the first 6 months of life with or without IOL implantation ...
A pinhole implant placed in the ciliary sulcus can improve visual acuity and reduce dysphotic symptoms in pseudophakic eyes with irregular corneal astigmatism. Implantation is even easier with the latest version of the investigational device
Discussion. Topical pilocarpine 2% is a parasympathomimetic drug with direct cholinergic action on the muscarinic receptors and smooth muscles of the iris and ciliary body. This drug causes the contraction of the pupil by increasing the tension in the scleral spur and providing the opening of the spaces of the trabecular meshwork. It is traditionally used to reduce the intraocular pressure in the treatment of glaucoma,(1) and for increased salivation in patients with Sjogrens Syndrome.(2) Recent articles show the use of topical pilocarpine for pupillary manipulation in order to reduce the positive and negative dysphotopies in pseudophakic patients in the postoperative cataract surgery.(3,4) The effect of pilocarpine for this purpose comes from the miosis and creation of a pupillary pinhole excluding the peripheral rays in the formation of the image and improving the depth of focus. As the central light rays suffer less aberrations, they provide greater sharpness of the images formed. In cases ...
This study is to evaluate the necessity of considering posterior corneal toricity on refractive outcome of patients with cataracts and corneal astigmatism after implantation of intraocular lenses.. This is determined by comparing total corneal and refractive astigmatism,and by comparing the expected refractive result with actual refractive astigmatism postoperatively,using total corneal and anterior corneal astigmatism to calculate respectively. ...
The number of Americans affected by cataract and undergoing cataract surgery will dramatically increase over the next 20 years as the US population ages.
Background/aim: Little is known about biochemical markers related to change in visual acuity after vitrectomy. The potential use of transthyretin (TTR), a carrier of the retinol/retinol-binding protein, as a biochemical marker protein, was investigated.. Methods: TTR was measured using immunonephelometry in a group of patients (n = 77) in longstanding (,1 week) retinal detachment (n = 29), fresh (,1 week) retinal detachment (n = 17), macular holes (n = 20) or diabetic retinopathy (n = 11). Vitreous samples were taken at the start of every vitrectomy procedure. For reference values, cadaver specimens (n = 73) were used.. Results: Reference values for vitreous TTR (median 18 mg/l; IQR 4 to 24 mg/l) comprised 2.2% of reference values for vitreous protein levels (median 538 mg/l; IQR 269 to 987 mg/l). Vitreous TTR values of patients were comparable in all disorders. Vitreous TTR values were higher in phakic (median 22.5 mg/l; IQR 10 to 27 mg/l) than in pseudophakic patients (median 12 mg/l; IQR 8 to ...
In this prospective study we enrolled 30 consecutive pseudophakic patients (30 eyes) with uncontrolled glaucoma under maximum tolerated medical treatment and without any previous filtering surgery. We performed a 360° treatment using the Ellex Solo laser system. Mean IOP measurements were carried out month 1, month 6 and month 12 post-laser treatment. Glaucoma stage was classified according to visual field loss as early, moderate or advanced. A range of target IOP was determined for each glaucomatous eye and used as an absolute success criterion. An IOP ...
All of the pseudophakic subjects were controlled according to the hospital records and divided into two groups according to the IOL haptic design as single piece and three piece hydrophobic acrylic type. Group 1 consist of 35 subjects with single-piece IOL and group 2 consist of 30 subjects with three-piece IOL. Measurements with the Sirius topographer were performed for anterior segment analysis. Data for the posterior cornea, anterior lens, anterior chamber, anterior chamber angle and iris are obtained from Scheimpflug images These examinations and were performed before, one week and one month after Nd:YAG laser capsulotomy ...
When considering premium surgeries and high expectations from patients along with an unrelenting quest for vision exceeding 20/20, the tolerance of residual astigmatism must be zero. Like bespoke tailors, ophthalmologists need to be bespoke surgeons who tailor vision in each eye to the highest level possible. We cannot claim to design the best suit using the best technology and tailoring materials, and yet, in our minds, find it
When considering premium surgeries and high expectations from patients along with an unrelenting quest for vision exceeding 20/20, the tolerance of residual astigmatism must be zero. Like bespoke tailors, ophthalmologists need to be bespoke surgeons who tailor vision in each eye to the highest level possible. We cannot claim to design the best suit using the best technology and tailoring materials, and yet, in our minds, find it acceptable to have the suit length within a half-inch to three-quarters of an inch too short or wide. ...
Schematic of the Selection-MDA approach. (A) Schematic showing the differences between the GIS-PET approach using bacterial propagation, and the GIS-PET approac
Join the Ophthalmology Grand Rounds "Pseudophakic Dysphotopsia" presented by Samuel Masket, MD on May 5, 2021 via Webex.
Pardon if this questions have been asked and answered, but I havent found them using the search functions. 1. I have a question for those of you who have monofocal IOLs in both eyes set for dist...
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Schematic representation of the flow device.A) Schematic representation of the flow device, with the dimensions in mm. Depicted in red and blue are the in- and
Find Step Down Schematic related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of Step Down Schematic information.
Hi Sooncheng, I know what you mean. I found a schematic online that showed it incorrectly wired up. I just added a schematic that explains the way mine worked. Hope it helps. ...
In their letter to the editor, De Roo and colleagues1 present results from complementary experiments. Inclusion of an extended range of analytes and an additional cohort of pseudophakic controls (Edemapsph), composed of eyes diagnosed with graft failure or pseudophakic bullous keratopathy, allow for a more detailed analysis. The authors confirm the results from our study with respect to elevated aqueous MCP-1 expression in pseudophakic FECD eyes and demonstrate increased expression of aqueous IL-8 after cataract surgery.1 Their results describe increased TGF-β2 levels in phakic FECD patients compared with phakic (cataract) controls and increased TGF-β2 levels in pseudophakic FECD patients compared with pseudophakic controls (Edemapsph).1 Moreover, they find increased TGF-β3 expression in the aqueous humor of phakic FECD eyes compared with all three other groups.1 ...
Following cataract surgery, residual astigmatism may result in sub-optimal uncorrected distance visual acuity (UDVA), with each dioptre of
Researchers in France have determined that SD-OCT examinations for epiretinal membranes (ERM) are feasible in an elderly population. Their study determined that the modality was more sensitive in ERM detection than standard 45° retinal color photographs, especially when detecting them in the early stages.. Out of 624 participants who were at least 75 years old and underwent both fundus imaging and SD‐OCT examinations, 610 (97.8%) subjects had gradable SD‐OCT examinations and 511 (81.9%) had gradable fundus images in at least one eye. Based on the fundus photographs, 11.6% of participants had definite ERMs. However, the SD‐OCT images revealed that 52.8% of the subjects had early ERMs (stage 1), 7.4% had mature ERMs without foveal involvement (stage 2) and 9.7% had mature ERMs with foveal alterations (stage 3).. Regardless of the imaging method used, the researchers discovered ERMs more often in pseudophakic eyes than in phakic eyes. While the speci﫿city of the retinal images was good ...
Free schematics s5233 downloads - Collection of schematics s5233 freeware, shareware download - McCad Schematics, ConceptDraw NetDiagrammer, ConceptDraw NetDiagrammer Mac ...
Wiring Diagram 7 Way Trailer Plug Wiring Schematic Showfile.aspTGIWN FILE2N8 Wiring Diagram 7 Way Trailer Plug Wiring Schematic 7 Way Trailer Plug Wiring Schematic.
mc 2100 rev b schematic, Browse and download Minecraft Schematics Maps by the Planet Minecraft community. x 1. Greenhouse [Schematic Download]. 1.2k 466. x 2. Sumpfhütte - swamp hut [MC-Version 1.16.X].
multifocal IOLs - MedHelps multifocal IOLs Center for Information, Symptoms, Resources, Treatments and Tools for multifocal IOLs. Find multifocal IOLs information, treatments for multifocal IOLs and multifocal IOLs symptoms.
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Genetically Enhanced Livestock Schematic database displays factory required, required commodities, output and much more. Created by DaOpas Eve-Online FanSite | Genetically Enhanced Livestock
The TECNIS® 1-Piece Monofocal IOL delivers the sharpest vision, enhanced functionality and long-term sustainability for your everyday procedures.
The TECNIS® 1-Piece Monofocal IOL delivers the sharpest vision, enhanced functionality and long-term sustainability for your everyday procedures.
TO I think there may be an error in the second schematic that you recommended. It starts The schematic shows
Examine electronic schematics and supporting documents to develop, compute, and verify specifications for drafting data, such as configuration of parts, dimensions, or tolerances.. ...
Purpose:. To evaluate the patients with nonproliferative (NPDR) and proliferative diabetic retinopathy (PDR) with or without macular edema using optical coherence tomography angiography (OCTA).. Methods:. 40 PDR, 54 NPDR and 20 patients with subretinal fluid (SRF) Type 2 diabetic patients enrolled into study. Best corrected visual acuity, anterior segment and fundus examination were done. Diabetic retinopathy was evaluated with fundus florescence angiography (FFA), and OCTA. Pseudophakic patients, patients with history of laser photocoagulation, intravitreal injection excluded from study.Superior foveal, parafoveal vessel density (SFD,SPD), deep foveal, parafoveal density (DFD, DPD), foveal avascular zone (FAZ), acircularity, perimetry, foveal density (FD), flow area of outer retina and choriocapillaries were evaluated with OCTA.. Results:. There was no difference between groups in terms of age and gender (p,0,05). Cystoid macular edema (CME) was present in 8 patients (20%) in the PDR group and ...
TY - JOUR. T1 - Limits of immunohistochemistry in the diagnosis of epithelial downgrowth. AU - Bergwerk, K. L.. AU - Rosenbaum, P. S.. AU - Tanaka, K. E.. AU - Udeil, I. J.. PY - 1996/2/15. Y1 - 1996/2/15. N2 - Purpose: The immunohistochemical staining characteristics of corneal endothelium was studied to clarify the usefulness of these stains in the pathologic diagnosis of epithelial downgrowth. Methods: Tissue sections of formalin-fixed, paraffin-embedded corneal specimens (keratoconus, pseudophakic bullous keratopathy, epithelial downgrowth, failed corneal grafts with retrocorneal fibrous membranes, and postmortem control corneas) were immunostained with a panel of corneal epithelial and endothelial markers (EMA, KAE 1/3, CAM5.2, Factor VIII, CD-34, CD-31) and with Vimentin using the Strept-Avidin technique (Dako). Results: Corneal endothelium is immunonegative for endothelial cell markers (CD-34,CD-31, and Factor VIII) and displays immunopositivity for epithelial markers (KAE 1/3, CAM 5.2). ...
The successful surgeries were conducted through aid provided by Johanniter in collaboration with AIC Health Ministries at the Kakuma General Hospital.
With monovision contacts, the two eyes still work together as a team to see clearly at all distances; its just that one eye is clearer than the other, and the stronger eye will depend on whether you are looking at something far away or up close. Though monovision might sound difficult to adjust to, most people adapt very well and eventually dont even notice which eye is their distance eye and which is their near eye.
Gary Wörtz, MD, sits down with Sumitra Khandelwal, MD, to talk about posterior corneal measurements for toric IOLs and the most accurate tools for acquiring information. Dr. Wörtz also speaks with John Berdahl, MD, regarding, a tool to help surgeons correct residual astigmatism caused by common measurement deviations.
If your are suffering from presbyopia, contact our NJ vision correction center for a free consultation. Contact Norden Laser for more information about monovision
2011) First Company Air Handler Schematic.rar ,,, DOWNLOAD (Mirror #1). Arduino senses the environment by receiving inputs from many sensors, and affects its surroundings by controlling lights, motors, and other actuators.Title: A duty done1 . On 7 September, D Company 2 RAR . Two companies of 7RAR followed in APCs and the remainder of the battalion by air, first to FSB .10plrvideoarticles.pdf 11 ecommerce shopping carts plr articles.pdf 11 slide shred niche videos royalty free.pdf 115000 plr articles package rar files.pdf 115000 .Educations leading resource for knowledge, standards, advocacy and training in alumni relations, communications, fundraising, marketing and related activities.INSPECTION OF INSTALLED ASPHALT . FIG. 1 is a schematic view of a magnetic taggant . signals from the outer sense coil 28 when only air is present .In Archive STARTOS.rar is DNW.exe utility . I had used PDP-11 before when I worked in an old-well logging company. anatoliy . , First, startos is for the .Catia ...
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Polymeric Reverse Micelles as Selective Extraction Agents and Related Methods of MALDI-MS Analysis - diagram, schematic, and image 01 ...
APPARATUS AND METHODS FOR SUPPORTING CARDIAC ISCHEMIC TISSUE BY MEANS OF EMBEDDED STRUCTURES - diagram, schematic, and image 18 ... Try to divide the schematic into stages-and decide which things you would like to incorporate. The schematic itself lists all the specific parts we used. In your project, you probably wont be making the complete design. Just build out parts of the design and customize it as per your needs. As for the numbers of things like resistors, we chose values as we built out the design bit by bit , adjusting to get ranges within the limits of each stage. Just start small and build out one stage at a time.. Good luck ...
I am guessing I just missed it but I am wondering what you are using to create these incredible images? and are they vector art originally? actually...
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The process of structure formation is indeed nontrivial, as clamtrox says, but I think there are some simple concepts that should help elucidate things. They key here is scale. All of the fluctuations seen in the CMB today were once outside our cosmological horizon (they were stretched to superhorizon scales during inflation.) Fluctuations on superhorizon scales do not evolve, because their wavelengths span acausal distances. Once inflation ended and the universe began to evolve according to standard radiation-dominated FRW cosmology, these fluctuations began to fall back inside the horizon. Once inside, they suddenly come back to life, causally evolving according to all the gory laws of general relativistic fluid dynamics. Initially these fluctuations oscillate, because the photons and baryons are still tightly bound when the smallest scale fluctuations begin to enter the horizon (the largest scales are still way outside). These are the famous acoustic oscillations seen in the CMB from ...

No data available that match "pseudophakia"

  • Glaucoma in aphakia and pseudophakia after congenital cataract surgery. (
  • Participants: The Toddler Aphakia and Pseudophakia Study is a registry of children treated by surgeons who participated in the IATS. (
  • Toddler Aphakia and Pseudophakia Study Group (TAPS) 2019, ' Outcomes of Unilateral Cataracts in Infants and Toddlers 7 to 24 Months of Age: Toddler Aphakia and Pseudophakia Study (TAPS) ', Ophthalmology , vol. 126, no. 8, pp. 1189-1195. (
  • All lenses were divided into seven groups: clear lens, posterior subcapsular, nuclear, cortical and mixed cataract, aphakia and pseudophakia. (
  • 487 females) were analyzed after exclusion of children and patients diagnosed with healthy eyes, acute injury, or unilateral pseudophakia. (
  • Unlike congenital glaucoma , the first line of treatment for glaucoma in aphakia / pseudophakia may be medical. (
  • For the diagnostic groups, the mean PSQI and HADS scores, respectively, were 5.7±3.3 and 10.2±6.0 for dry eye (n=247), 5.4±3.2 and 9.2±5.7 for bilateral cataracts (n=159), 5.3±3.3 and 8.0±5.3 for bilateral pseudophakia (n=99), and, 5.0±3.1 and 9.8±6.6 for glaucoma (n=109). (
  • Binkhorst CD, Kats A, Tjan TT, Loones LH (1976) Retinal accidents in pseudophakia: intracapsular versus extracapsular surgery. (
  • The medical records of patients with pseudophakia after phacoemulsification and intraocular lens implantation who had undergone surgery for primary rhegmatogenous RDs with a minimum duration of follow-up of 12 months were reviewed retrospectively. (
  • Binkhorst CD (1959) Iris-supported artificial pseudophakia: a new development in artificial intraocular lens surgery (Iris-Clip Lens). (
  • Pseudophakia with kelman multiflex intraocular lens or mainster contact lens. (
  • Study of early refractive changes following Nd: YAG capsulotomy for posterior capsule opacification in pseudophakia-IJCEO-IP Innovative Publication Pvt. (
  • Ramachandra S, Kuriakose F, Study of early refractive changes following Nd: YAG capsulotomy for posterior capsule opacification in pseudophakia. (
  • Gills JP, Fenzl R (1999) Minus-power intraocular lenses to correct refractive errors in myopic pseudophakia. (
  • An estimated 20.5 million (17.2%) Americans older than 40 years have cataract in either eye, and 6.1 million (5.1%) have pseudophakia/aphakia. (
  • Summary prevalence estimates indicate that 17.2% of Americans aged 40 years and older have cataract in either eye and 5.1% have pseudophakia or aphakia (previous cataract surgery). (
  • 3. Entitlement to a compensable disability rating for pseudophakia status post bilateral cataract surgery (claimed as blindness due to radiation exposure). (
  • In addition, in a November 2011 rating decision, the RO granted service connection for pseudophakia status post bilateral cataract surgery (claimed as blindness due to radiation exposure) and assigned a noncompensable disability rating effective December 13, 2001. (
  • 1. Schedule the Veteran for a VA eye examination to assess the current severity of his service-connected pseudophakia status post bilateral cataract surgery. (
  • PPV was more likely in patients with pseudophakia and vitreous haemorrhage. (
  • It has been estimated that 6.1 million (5.1%) of Americans have pseudophakia/aphakia. (
  • This case report details the diagnosis and treatment of a symptomatic patient with significant anisometropia, pseudophakia OS and post-penetrating keratoplasty OU secondary to keratoconus using size lenses and common clinical equipment. (
  • Diagnosis and treatment of aniseikonia associated with pseudophakia an" by James Kundart, Beth Kinoshita et al. (
  • Pseudophakia often occurs during cataract surgery. (
  • Summary prevalence estimates of cataract and of pseudophakia/aphakia were prepared separately for black, white, and Hispanic persons (for whom only cataract surgery data were available) in 5-year age intervals starting at 40 years for women and men. (
  • and for those who are expected to have pseudophakia/aphakia, to 9.5 million. (

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