Peripheral contrast sensitivity and attention in myopia
نویسندگان
چکیده
منابع مشابه
Peripheral contrast sensitivity and attention in myopia
Disruption of normal visual experience or changes in the normal interaction between central and peripheral retinal input may lead to the development of myopia. In order to examine the relationship between peripheral contrast sensitivity and myopia, we manipulated attentional load for foveal vision in emmetropes and myopes while observers detected targets with peripheral vision. Peripheral contr...
متن کامل[Spatial contrast sensitivity in patients with severe myopia].
PURPOSE The purpose of this study was to assess the effects of amount of myopia, axial elongation staphyloma and type of optical correction on contrast sensitivity of high myopic subjects. METHODS Fifty-one patients (91 eyes) were selected on the following qualifications: myopia > or = 8 dpt and/or axial length > or = 26 mm, and visual acuity > or = 0.1 recorded through spectacle lenses. Cont...
متن کاملPeripheral cone contrast sensitivity in glaucoma
Colour vision tests for detection of glaucomatous damage frequently suffer from two problems: most tests are confined to foveal vision, whereas defects tend to appear first extrafoveally; and the modulation directions in colour space are not optimal. This paper deals with peripheral testing à la Yu, Falcao-Reis, Spileers and Arden [(1991) Investigative Ophthalmology and Visual Science, 32, 2779...
متن کاملExogenous attention enhances 2nd-order contrast sensitivity
Natural scenes contain a rich variety of contours that the visual system extracts to segregate the retinal image into perceptually coherent regions. Covert spatial attention helps extract contours by enhancing contrast sensitivity for 1st-order, luminance-defined patterns at attended locations, while reducing sensitivity at unattended locations, relative to neutral attention allocation. However...
متن کاملVisuospatial attention in myopia.
Four experiments were conducted to ascertain whether myopia is associated with deficits of visuospatial attention. In myopic and emmetropic control subjects, we studied: (1) automatic and voluntary orienting of attention, (2) focusing of attention and (3) performance on a visual search task. The results indicated that automatic orienting was defective in myopics and their performance in visual ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Vision Research
سال: 2016
ISSN: 0042-6989
DOI: 10.1016/j.visres.2016.05.004