Resolution acuity versus recognition acuity with Landolt-style optotypes

Abstract

International standards define acuity as the reciprocal of the threshold gap size of a Landolt C optotype. However, the literature is inconsistent as to what type of acuity is measured with Landolt Cs. The present study addresses this question more directly than previous studies by quantifying the effect of an inherent luminance artifact in Landolt-style… (More)
DOI: 10.1007/s00417-013-2404-6

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