Search results for "structures"
showing 10 items of 4815 documents
Proclear EP vs placebo: visual outcomes and symptoms of asthenopia in nonpresbyopes and early presbyopes
2011
Purpose: Over the past 20 years, many studies have reported the success of multifocal contact lenses (MFCLs) compared to monovision (MV), with only partial success being reported for MFCLs. Chronologically it appears there has been a gradual improvement in the performance of MFCLs. This study investigated whether this change in success is reflected in clinical practice. Method: Lens fit data collected from 2005 to 2009 by the International Contact Lens Prescribing Survey Consortium was reviewed for patients over 45 years old. A similar survey conducted from 1988 to 1989 was also reviewed and compared. Twelve published (Pubmed.gov) reports of clinical trials involving MFCLs and MV were revie…
Slowed abduction saccades in bilateral internuclear ophthalmoplegia
1992
Horizontal eye movements were investigated in 65 patients with bilateral internuclear ophthalmoplegia utilizing direct current electro-oculography. Abduction saccades were slowed in 35 patients (53.8%), being hypermetric in 65.7% of them. Slowing of abduction saccades is attributed to impaired inhibition of the tonic resting activity of the antagonistic medial rectus muscle. Experimental data indicate that this slowing results from a lesion of an uncrossed connection between the pontine reticular formation and the oculomotor nucleus. The prevalence of hypermetric abduction saccades increased with increasing severity of adduction paresis on the opposite eye. This confirms the view that media…
Smoking and age-related macular degeneration: review and update.
2013
Age-related macular degeneration (AMD) is one of the main socioeconomical health issues worldwide. AMD has a multifactorial etiology with a variety of risk factors. Smoking is the most important modifiable risk factor for AMD development and progression. The present review summarizes the epidemiological studies evaluating the association between smoking and AMD, the mechanisms through which smoking induces damage to the chorioretinal tissues, and the relevance of advising patients to quit smoking for their visual health.
Mitomycin C bei oberflächlichen Hornhautablationen mit dem Excimer-Laser: Eigene Erfahrungen und Literaturübersicht
2005
Haze formation with loss of corneal transparency and surface irregularities and myopic regression are the major complications after corneal refractive surface surgery. The use of mitomycin C (MMC) with its antibiotic and antineoplastic properties is intended to inhibit wound healing mechanisms leading to subepithelial fibrosis. We report the use of MMC to achieve visual rehabilitation in the re-treatment of 3 eyes of 2 patients following refractive corneal surgery. According to the literature, the local use of MMC 0.02 % for 2 minutes is safe and enables one to treat and prevent stromal haze and myopic regression and allows a reduction of the postoperative topical pharmacotherapy. Results a…
Macula structural and vascular differences in glaucoma eyes with and without high axial myopia
2021
AbstractAimsTo assess the thickness of various retinal layers, and the superficial vessel density (sVD) in the macula of glaucomatous eyes and their associations with axial length (AL) and visual field mean deviation (VFMD) to identify parameters useful for glaucoma management in myopic eyes.Methods248 glaucoma patients (401 eyes) participating in the Diagnostic Innovations in Glaucoma Study observational cohort representing 3 axial myopia groups (non-myopia: n=146 eyes; mild myopia: n=208 eyes; high myopia (AL>26 mm): n=47 eyes) who completed macular OCT and OCT-Angiography imaging were included. The cross-sectional associations of AL and VFMD with the thickness of the ganglion cell inn…
The Efficiency of Pulse Therapy with Glucocorticoids in Inflammatory Orbital Disorders: Case Report
2020
Abstract Orbital pseudotumor represents a benign inflammatory disorder of the orbit, with unspecified etiology, whose clinical presentation can mimic the ocular pathology of Basedow disease, namely Graves’ ophthalmopathy, the two of them representing two of the most common orbital conditions. Imagistic methods and laboratory analyses can establish the diagnosis through orbital MRI images specific for the orbital pseudotumor, especially by dosage of the TSH receptor antibodies (TRAb) which will have increased values in Basedow disease with ocular damage. In both situations, the treatment is represented as a first therapeutic line by administration of corticotherapy in high dosage orally or i…
The joint structure–function dynamics of glaucoma progression
2015
While the presence and rate of glaucoma progression influence treatment decisions, the methods currently available to detect and monitor progression are imprecise and do not allow clinicians to make accurate assessments of the status of their patients. Models that focus on combining structural and functional parameters may improve our ability to detect and monitor glaucoma progression. Several of these models, however, are limited by their reliance on population statistics and on the static assumptions they make about the nature of glaucoma progression. Dynamic modeling of glaucoma progression may lead to a better understanding of glaucoma progression that could eventually translate into ma…
Analysis of Tear Protein Patterns for the Diagnosis of Dry Eye
2002
Dry eye syndrome occurs very frequently in the industrial world. In the United States, one of five people, 59 millions patients, suffer from symptoms of this disease (Eagle Vision, Yankelovich and Partners, 1997), and the number of patients has doubled in the last 10 years. 1-4 Diagnosis and treatment of dry eye syndrome are challenging. In fact, a curative therapy of this disease does not exist. Dry eye is a disease with various symptoms resulting from aqueous, mucin or lipid deficiency. Different diseases, among them Sjogren’s syndrome, can cause this deficiency, but most patients do not have accompanying disorders.
Effects of Superficial Keratectomy in Peripheral Hypertrophic Subepithelial Corneal Opacification on Front and Back Corneal Astigmatism
2020
To evaluate changes of anterior and posterior corneal astigmatism after superficial keratectomy in peripheral hypertrophic subepithelial corneal opacification (PHSCO). Patients with PHSCO, who had ...
Neuro-Psychiatric Disorders: From Diagnosis to Care
2019
Neuro-psychiatric disorders are an important cause of poor quality of life, disability, and premature mortality [...]