Perceptual learning improves contrast sensitivity, visual acuity, and foveal crowding in amblyopia
نویسندگان
چکیده
منابع مشابه
Perceptual learning improves contrast sensitivity, visual acuity, and foveal crowding in amblyopia.
BACKGROUND Amblyopic observers present abnormal spatial interactions between a low-contrast sinusoidal target and high-contrast collinear flankers. It has been demonstrated that perceptual learning (PL) can modulate these low-level lateral interactions, resulting in improved visual acuity and contrast sensitivity. OBJECTIVE We measured the extent and duration of generalization effects to vari...
متن کاملPerceptual learning improves contrast sensitivity and visual acuity in adults with anisometropic amblyopia
To evaluate the effects of perceptual learning on contrast-sensitivity function and visual acuity in adult observers with amblyopia, 23 anisometropic amblyopes with a mean age of 19.3 years were recruited and divided into three groups. Subjects in Group I were trained in grating detection in the amblyopic eye near pre-training cut-off spatial frequency. Group II received a training regimen of r...
متن کاملeffect of occlusion therapy on visual acuity, contrast sensitivity and stereopsis in amblyopia
purpose: to determine the effect of occluding a normal eye on visual acuity, contrast sensitivity and stereopsis in amblyopic school children. methods: amblyopic children from primary schools of region 2 in mashhad were identified and referred to optometry clinics of mashhad medical university through a screening program. informed consent was obtained from the parents. all subjects underwent an...
متن کاملVernier acuity, crowding and amblyopia.
When a vernier target is flanked by a pair of optimally positioned flanks, offset discrimination is strongly degraded. Spatial interference with vernier acuity was studied in each eye of observers with unilateral amblyopia associated with strabismus, anisometropia or both, and were compared to the functions obtained in the normal periphery (Levi et al., 1985). The results showed that: (1) For b...
متن کاملCorrigendum to “Perceptual learning improves contrast sensitivity and visual acuity in adults with anisometropic amblyopia” [Vis. Res. 46 (2006) 739–750]
a Vision Research Lab, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, PR China b Laboratory of Brain Processes (LOBES), Department of Psychology, Neuroscience Graduate Program, University of Southern California, Los Angeles, CA 90089-1061, USA c Department of Biomedical Engineering, Neuroscience Graduate Program, University of Southern California, L...
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ژورنال
عنوان ژورنال: Restorative Neurology and Neuroscience
سال: 2017
ISSN: 0922-6028,1878-3627
DOI: 10.3233/rnn-170731