Assessment of Visual Function for Education: A Commentary on ‘VEP Visual Acuity in Children with Cortical Visual Impairment’

Last year’s article In the International Journal of Clinical and Experimental Ophthalmology [1] highlighted that Cortical Visual Impairment (CVI) is now the leading cause of visual impairment in the developed world [2]. It also provided a definition of CVI [3,4], and summarized its functional deficits, and methods of assessment. Different sources report vastly different incidence of Visual Acuity (VA) reduction in CVI, ranging from 83% [5] to just a small minority [6]. However, the implication is the samescreening of many aspects of vision may be required in infancy, not just VA.