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This small, concise paperback is a remarkably comprehensive review of clinically relevant tests of vision commonly used by practicing ophthalmologists and neurologists. Frisen, an authority on visual acuity testing and perimetry, writes in a straightforward, highly readable style, and adds clinical pearls from his experience in the field that are highlights of the text. For example, he checks visual acuity of the right eye by having the patient read from left to right, and the left eye by having the patient read from right to left. This prevents memorization of the chart and enhances detection of bitemporal field defects.
The early chapters address the fundamental concepts of statistically based methods of measuring vision, techniques of obtaining and reporting visual acuity, metamorphopsia, and color vision. The bulk of the text discusses techniques of perimetry and interpretation of visual field defects but also includes challenging test cases. The chapters are generously illustrated
Hamilton S. Clinical Tests of Vision. Arch Ophthalmol. 1992;110(4):460-461. doi:10.1001/archopht.1992.01080160038021