Abstract

In recent years, this laboratory has published a series of papers on a simple three point vernier acuity (alignment) test having rather unique properties and offering particular promise as a clinical test. Included in this set of properties is essential independence of responses to this test from effects of aging. And if the test is conducted at super-threshold settings and the test points can be identified as separate from each other; background and test luminance levels, contrast, veiling glare, test spot size, and image degradation (even extreme) do not meaningfully alter outcomes. Because of the potential value of this test as a reference or “gold” standard, and for purposes such as assessment of vision through dense media disorders, we seek to develop further the data base supporting this test. Here, we extend the age range sampled from 20-94 (previous study) to include ages 10-19 years. Not surprisingly, the three point vernier acuity test was shown not to vary significantly with aging within this age span as well.

© 1998 Optical Society of America