Ferree, Clarence Errol, Rand, Gertrude, b.1886 · New York, etc. · leaf 70
gic condi- 64.94 degrees; and for the emmetropes tion comparatively simple and easy. alone, 67.38 degrees. The range ^ for The use of perimetry in diagnosis, the the i5 observers was from 62.25 to other important application to clinic 72.60 degrees ; for the 200 observers, it work, could be made… … Fig. 3. Showing the widest field A. for 200 nonpathologic cases; the average field B ; the narrowest ticld C; and the sizes of field which may he regarded as borderline. X myopes and Y emmetropes and hyperopes.
Ophthalmology · Vision · Color vision
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