THE EFFECT OF REFRACTIVE ERROR ON THE ACCOMMODATIVE RESPONSE GRADIENT

Abstract

Abstracts— The accommodative responses of early‐onset myopes, late‐onset myopes, emmetropes and hyperopes were measured over a range of 5 dioptres using an objective infra‐red autorefractor. Differences were found between the four refractive groups, with hyperopes accommodating more for near targets than emmetropes, followed by early‐onset myopes then late‐onset myopes. Moreover a strong correlation between the accommodative response gradient and refractive error was found, suggesting that hyperopes accommodate more to a particular target than do emmetropes or myopes. The results are interpreted in the context of a dual innervation to the ciliary muscle. Copyright © 1986, Wiley Blackwell. All rights reserved