Search PubMedSearch

Biomedical subjects

P Lempert

Publications and source records attributed to P Lempert.

14 recordsLinked to original sources

Optic disc size.

Explore the source record for details and available documents.

Choroid

Books, books, books.

Explore the source record for details and available documents.

Computer Communication Networks

Evaluation of posterior subcapsular cataracts. With spatial contrast acuity.

A new microcomputer-controlled instrument that tests contrast acuity is described. It displays a range of Sloan optotype sets at five different levels between 3 and 95% contrast. The spatial contrast acuities of two groups were compared with this instrument. The first group consisted of 68 eyes of patients with posterior subcapsular cataracts whose conventional, high-contrast visual acuity was 20/60 or better. The second group was comprised of 146 eyes with normal vision. The posterior subcapsular cataract group had greater variation in visual performance and a more pronounced decrease in spatial acuity at lower contrasts than did the normal group. This study indicates that high-contrast acuity measurements, in patients with posterior subcapsular cataracts, do not predict acuity at other contrast levels.

Cataract