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Amsler grid (AG)
A self-monitoring device for patients with macular degeneration.
Procedure:
- a 20 x 20 grid of 5 mm squares formed by white lines on a black background
- the patient focuses on the central white dot of the grid & notes the presence of metamorphopsia, micropsia or scotoma
- any of these symptoms should prompt evaluation by an ophthalmologist
Related
macular degeneration
metamorphopsia
micropsia
scotoma
Specific
home Amsler grid (HAG)
General
device (medical device)
References
Medical Knowledge Self Assessment Program (MKSAP) 11, American
College of Physicians, Philadelphia 1998