Ocular dimensions and schematic eyes of freshwater and sea turtles

作者：DAVID P.M. NORTHMORE, A.M. Granda · 发表于：Visual Neuroscience · 年份：1991 · DOI：10.1017/s0952523800010415 · 被引用次数：50 · 研究领域：Turtle Biology and Conservation、Amphibian and Reptile Biology、Animal Behavior and Reproduction

Measurements were made of the ocular dimensions from living and frozen eyes of one species of freshwater turtle, Pseudemys scripta elegans, and of three species of marine turtles, Chelonia mydas, Dermochelys cariacea, and Eretmochelys imbricata. Estimates of refractive error by retinoscopy were also obtained with eyes in air and under water. The results suggest that unaccommodated eyes of all four species are approximately emmetropic in air but strongly hyperopic in water. Schematic eyes were calculated for each species in both air and water.