In the typical human visual system, the macula allows for high visual resolution. Damage to this area from diseases, such as age-related macular degeneration (AMD), causes the loss of central vision in the form of a central scotoma. Since no treatment is available to reverse AMD, providing low vision rehabilitation to compensate for the loss of…

Skilled readers read passages while their eye movements were monitored. Certain critical words were changed by the computer as the eye was in motion. Subsequent data indicated how wide the area is from which a reader acquires information during a fixation in silent reading. (Author/BJG)