THE REFRACTIVE PROFILE OF PRIMATES AND ILLITERATE ESKIMOS
The picture above-right is the refractive status of primates in the "wild". The profile of the Eskimos (who do not read) is similar to this distribution. * In addition, when the Rhesus primates are put into cages, they begin to show the same negative refractive change that the Hong Kong Students demonstrate. ** * "Ocular Biometry of Eskimo Families", Francis A. Young & George A. Leary ** "Visual Refractive Errors of Wild and Laboratory Monkeys", Francis A. Young [This data was taken from 286 eyes, with a mean refraction of +0.68, and a Standard Deviation of +0.73 diopters. A larger Rhesus study of 598 eyes showed the same profile.] |