threshold of visual acuity

См. также в других словарях:

• acuity — 1. Sharpness, clearness, distinctness. 2. Severity. [thr. Fr., fr. L. acuo, pp. acutus, sharpen] absolute intensity threshold a. the minimal light that can be seen. resolution a. detection of a target having two or more parts, often measured by… …   Medical dictionary

• vernier acuity — ver·ni·er acuity vər nē ər n the aspect of visual acuity that involves the ability to detect the alignment or lack of alignment of the two parts of a broken line (as in reading a vernier scale) compare GRATING ACUITY, HYPERACUITY, STEREOACUITY *… …   Medical dictionary

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