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ERIC Number: EJ823868
Record Type: Journal
Publication Date: 2008-Oct
Pages: 7
Abstractor: ERIC
Reference Count: 21
ISSN: ISSN-0145-482X
Topographic Mapping of Residual Vision by Computer
MacKeben, Manfred
Journal of Visual Impairment & Blindness, v102 n10 p649-655 Oct 2008
Many persons with low vision have diseases that damage the retina only in selected areas, which can lead to scotomas (blind spots) in perception. The most frequent of these diseases is age-related macular degeneration (AMD), in which foveal vision is often impaired by a central scotoma that impairs vision of fine detail and causes problems with reading and recognizing faces. One would think that differences between damaged and relatively intact areas should be painfully obvious to those who have AMD. However, as clinical practice and scientific studies have shown, this is often not the case. Thus, patients and rehabilitation workers need to know where on the retina or in the visual field vision is still good enough to be usable. Having this information increases the chances for successful rehabilitation, the necessity and feasibility of which have been demonstrated. The fact that rehabilitation is possible emphasizes the need for a topographic assessment of remaining vision. In this article, the author describes the Macular Mapping Test (MMT) and illustrates with case reports how it can be used in clinical practice to assist in the assessment and rehabilitation of patients with central vision loss. (Contains 3 figures.)
American Foundation for the Blind. 11 Penn Plaza Suite 300, New York, NY 10001. Tel: 800-232-5463; Tel: 212-502-7600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A