Abstract

A fundamental question of the development of the focus of the eye concerns the interplay of inheritance and environment in determining whether the person will become normally sighted, nearsighted, or farsighted. A test for the strength of inheritable influences is to ask if the future refractive state of a subject can be predicted by the focusing behavior in infancy. That this is so was reported by Gwiazda and co-workers¹ using dark retinoscopy who found that school age myopia was predicted by infant refractive state.

© 1993 Optical Society of America