Zur Standardisierung der Perimetrie

Abstract

Standardized isopters were detd. for groups of 26 or 29 persons for different age groups and different contrasts between test object and background. Exact perimetry reveals definite fluctuation of sensitivity in normal people. In the 60-70 yr. age group the isopters were distinctly smaller than in the 20- to 30-yr. group. The results of the study of contrasts agreed with the data of Goldmann.