Fig. 1

Visual simulation of normal vision alongside common eye diseases. In diabetic retinopathy, black patches obstruct vision. Glaucoma is characterized by a darkening peripheral field while maintaining central vision. In AMD, central vision is impaired, whereas peripheral vision remains intact. Retinitis pigmentosa leads to a complete loss of the visual field around the periphery, with only central vision preserved. Cataracts and myopia both result in blurred vision, but there is a difference between the two. The entire field of view of the cataract is completely blurred, and the field of view of myopia is partially clear [7]. The images are provided by the National Eye Institute (NEI) and are publicly available (https://medialibrary.nei.nih.gov/search?keywords=&f%5B0%5D=category%3A8)