Scotopic contrast sensitivity and glare after accelerated corneal cross‐linking
نویسندگان
چکیده
منابع مشابه
Glare and contrast sensitivity before and after Nd:YAG laser capsulotomy.
The benefits of Nd:YAG laser capsulotomy on visual performance were evaluated in 13 patients with after-cataract following extracapsular cataract extraction. Besides clinical evaluation we measured: visual acuity, letter contrast sensitivity with and without the presence of a circular glare source (glare angle: 8 degrees). Finally, the patients were asked to evaluate their subjective glare prob...
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Scotopic contrast sensitivity functions (CSFs) were measured for 50 observers between the ages of 20 and 88 years. Using a maximum-likelihood, 2-alternative, temporal forced-choice threshold-estimation algorithm, scotopic CSFs were measured at 7 spatial frequencies ranging from 0.2 to 3.0 cpd, with mean retinal illuminance equated for observers at -0.85 log scotopic Trolands. For each stimulus ...
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26 27 Human contrast sensitivity in low scotopic conditions is regulated according to 28 the deVries-Rose law. Previous cat behavioral data, as well as cat and mice 29 electrophysiological data, have not confirmed this relationship. To resolve this 30 discrepancy at the behavioral level, we compared sensitivity in dim light for cats and 31 humans in parallel experiments utilizing the same visua...
متن کاملComplication and failure rates after corneal crosslinking.
PURPOSE To evaluate the complication rate of corneal crosslinking (CXL) for primary keratectasia and to develop recommendations for avoiding complications. SETTING Institut für Refraktive und Ophthalmo-Chirurgie, Zurich, Switzerland. METHODS In a prospective study, eyes with verified progressive keratectasia had standard CXL. Preoperative and 6- and 12-month postoperative examinations inclu...
متن کاملContrast sensitivity and glare disability after radial keratotomy and photorefractive keratectomy.
OBJECTIVES To study the effects of radial keratotomy (RK) and photorefractive keratectomy (PRK) on contrast sensitivity and glare disability using 4 different devices, and to correlate subjective complaints with obj ective scores of visual performance. METHODS Preoperative contrast sensitivity for 30 eyes undergoing RK and 30 eyes undergoing PRK was compared with contrast sensitivity at 1, 3,...
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ژورنال
عنوان ژورنال: Clinical and Experimental Optometry
سال: 2018
ISSN: 0816-4622,1444-0938
DOI: 10.1111/cxo.12566