title: Posterior corneal rings in monkeys.
abstract: Contact wide-field specular microscopy was performed on 27 monkeys of known ages. The induction of posterior corneal rings as a result of applanation pressure to be age-dependent. There was a total absence of these folds in animals under two years of age, and they usually occurred only in animals older than four years of age.
mesh_terms: D000818:Animals; D003316:Corneal Diseases / Q000209:etiology* / Q000473:pathology; D008252:Macaca fascicularis; D008253:Macaca mulatta; D008853:Microscopy / Q000009:adverse effects*