
Elvan Yalçın
World Eye Hospital İstanbul
Turkey
Title: Efficacy of neural vision therapy to enhance visual acuity and contrast sensitivity function in amblyopia
Biography
Biography: Elvan Yalçın
Abstract
I attempted to evaluate the efficacy of perceptual vision (neural vision) therapy in enhancing best-corrected visual acuity (BCVA) and contrast sensitivity function (CSF) in amblyopic patients.Amblyopia is the most frequent cause of reduced vision (unilateral or bilateral) in children, and is demonstrated by deficiencies such as loss of Snellen and grating acuity.The perceptual learning therapy program (RevitalVision LLC, Lawrence, KS, USA) is a noninvasive, software-based, patient-specific, interactive perceptual learning tool based on visual stimulation. It facilitates neural connections at the cortical level through a computerized visual training regimen using Gabor patches to improve contrast sensitivity and visual acuity.14,16–19 This treatment approach aims to reduce the noise activity of single cells, thereby increasing the signal strength and readapting the cortex to higher contrast sensitivity and visual acuity levels. The term “perceptual learning†describes a process whereby practicing certain visual tasks leads to an improvement in visual performance. Visual performance can be improved with repetitive practice on specific controlled visual tasks. These repetitive tasks initiate neural modifications that can lead to improvement in neuronal efficiency. Such neural modifications indicate the presence of brain plasticity.