نتایج جستجو برای: corneal parameters
تعداد نتایج: 605469 فیلتر نتایج به سال:
BACKGROUND To investigate the biomechanical properties of the cornea measured with the Ocular Response Analyzer (ORA) and their association with the anterior segment parameters representing the geometric dimensions including the corneal volume and anterior chamber volume. METHODS A retrospective review of 1020 patients who visited the BGN Eye Clinic was done. The mean radius of the corneal cu...
Report keratoconus in two patients with a long history of wrestling without any risk factor for corneal ectasia and reviewing the possible pathogenesis. To confirm suspicion of keratoconus, corneal topography was performed using scanning slit topography system and Orbscan. In two wrestlers with the complaint of visual loss in their eyes and IOP raising, corneal topography was performed and de...
OBJECTIVE To establish if corneal nerve loss, detected using in vivo corneal confocal microscopy (IVCCM), is symmetrical between right and left eyes and relates to the severity of diabetic neuropathy. RESEARCH DESIGN AND METHODS Patients (n = 111) with type 1 and type 2 diabetes and 47 age-matched healthy control subjects underwent detailed assessment and stratification into no (n = 50), mild...
The aim of this clinical study was to examine corneas extracted from the patients during penetrating keratoplasty for the presence of immunoglobulins and inflammatory cells that can be warning for the graft failure. Individual clinical diagnoses were correlated to the presence of the inflammatory signs in corneal tissue. The signs of inflammation in corneal layers were detected especially in gr...
Comparison of Scheimpflug imaging parameters between steep and keratoconic corneas of Caucasian eyes
PURPOSE To compare the keratometric and pachymetric parameters of healthy eyes with those affected by steep cornea and keratoconus (KC) using Scheimpflug camera. SETTING Briz-L Eye Clinic, Baku, Azerbaijan. DESIGN A cross-sectional study. METHODS In this study, 49 KC (Amsler-Krumeich stage 1) eyes and 36 healthy eyes were enrolled. A complete ophthalmic evaluation and a Scheimpflug camera...
Purpose: The present study aimed to review the effect of dehydration during Ramadan fasting on the health and ocular parameters leading to changes in eye function. Methods: Articles included in the study were taken from Pub Med, Ovid, Web of Science and Google Scholar up to 2014.Related articles were also obtained from scientific journals in fasting and eye. Results: Dehydration and nutrition c...
Background and purpose: Astigmatism is a common optical dysfunction, effective on various visual outcomes and one of the important criteria of refractive surgery. The aim of present study was to evaluate the correlation between refractive, corneal and residual astigmatism in refractive surgery candidates. Materials and methods: In this cross-sectional descriptive, analytical study, 200 patient...
30 Purpose: To analyse, describe and test diverse corneal and anterior segment parameters 31 in normal and keratoconic eyes to better understand the geometry of the keratoconic 32 cornea. 33 34 Method: 44 eyes from 44 keratoconic patients and 44 eyes from 44 healthy patients 35 were included in the study. The Pentacam System was used for the analysis of the 36 anterior segment parameters. New a...
PURPOSE To investigate the topography of the central and peripheral cornea in a group of young adult subjects with a range of normal refractive errors. METHODS Corneal topography data were acquired for 100 young adult subjects by a method that allows central and peripheral maps to be combined to produce one large, extended corneal topography map. This computer-based method involves matching t...
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