Cup to disc ratio bestimmen
WebThe present result demonstrating that cup size had a positive correlation with disc area ( r = 0.609) and a negative correlation with rim area ( r = −0.283) has likely been reported in previous studies. The cup-to-disc ratio seems to be greater than 0.7 in 2% of society [5]. WebApr 10, 2014 · Glaucoma is an optic neuropathy characterized by a specific and progressive injury to the optic nerve and retinal nerve fiber layer (RNFL).[] The vertical cup/disc (c/d) …
Cup to disc ratio bestimmen
Did you know?
WebThe normal cup-disk ratio We determined the cup-disk ratios of 580 individuals, ranging in age from 4 to 91 years, with a Hruby lens; we also determined the cup-disk ratios of 289 of the 580 with a direct ophthalmoscope. All had applanation pressures of 18 mm Hg or less. There was no linear relationship (covariation) between … WebOct 15, 2013 · Cup-to-disc ratios appeared to be 0.70 x 0.75 OD and 0.70 x 0.80 OS through stereoscopic evaluation at the slit lamp. Her retinal vasculature was normal in both eyes. Both macular and peripheral retina evaluations were largely unremarkable. There were no holes, tears or tractional phenomenon in either eye.
WebMay 5, 2006 · Estimation of vertical (VCDR) and horizontal (HCDR) cup-to-disc ratio with slit-lamp ophthalmoscopy was made by three glaucoma specialists along with OCT scanning of optic nerve head. WebOct 15, 2013 · Visual fields with standard automated perimetry were clear OU with no discernible defects. Her cup-to-disc ratios were estimated to be 0.50 x 0.60 OD and …
WebFeb 18, 2024 · The most prevalent risk factors for NAION were diabetes, cup-to-disc ratio equal to or below 0.3, hyperlipidemia and hypertension. A significant proportion of our study subjects (41%) were below the age of 50, and a cup-to-disc ratio (≤ 0.3) was found in 68.75% of young NAION patients and 56,6% of older NAION patients. WebIn NAION, patients may have a structural “disc at risk” of a small cup-to-disc ratio (CDR) that might predispose to disc oedema and secondary ischaemia.10 Likewise, translaminar pressure with subsequent optic nerve damage in primary open angle glaucoma (POAG) can manifest as a typical glaucomatous cupping with an increased CDR.11
WebFeb 20, 2024 · Mean refraction of right eye (OD / Ocular Dextra) were -10.72 ± 4.82 diopters and left eye (OS / Ocular Sinistra) were -10.27 ± 4.52 diopters. The results of the correlation test using Spearman ...
WebApr 7, 2024 · To determine if there are systematic differences in cup-to-disc ratio (CDR) grading using fundus biomicroscopy compared to stereoscopic disc photograph reading. … malibu ml300rtw instructionsWebJan 1, 2024 · They achieved an accuracy rate of 99.7% and 99.47% for the optic disc and cup segmentation respectively. Joshua et al. (2024) [25] assessed the performance of CDR on the two public Databases:... malibu mitch rapperWebIn eyes with normal fields, the cup/disc (C/D) ratio was found to be significantly related to applanation pressure P A level, ratio of pressure reading at the beginning of the … malibu ml300rtw timer not workingWebPlot of vertical cup diameter against vertical disc diameter. Mean (regression line) (R 2 = 0.42, p <0.000) and 95% prediction intervals shown. vertical cup diameter = −1.31 + … malibu miley cyrus streamingWebFeb 10, 2012 · The cup-to-disc ratio is a measurement used in to determine the risk or progression of glaucoma. The optic disc is the anatomical location where the optic nerve … malibu luxury beach housesWebApr 13, 2024 · This OT skills guide shows you how to obtain an accurate cup to disc ratio for your record keeping. It demonstrates methods for measuring the size of the disc and … malibu ml200rt low voltage transformer manualWebOct 25, 2015 · 14K views 7 years ago The cup-to-disc ratio is a measurement used in ophthalmology and optometry to assess the progression of glaucoma. The optic disc is … malibu ml200rt transformer troubleshooting