Visual Acuity in a Stumptail Macaque

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Science  03 Jun 1966:
Vol. 152, Issue 3727, pp. 1392-1393
DOI: 10.1126/science.152.3727.1392


Visual acuity in a normal stumptail macaque is 1.4 minutes of arc—similar to man's. Destruction of the fovea by photocoagulation decreased acuity to 9 minutes of arc. These facts suggest that the fovea in the macaque has the same physiological role in visual acuity as in man.