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THE EFFECT OF REFRACTIVE ERROR ON THE ACCOMMODATIVE RESPONSE GRADIENT *
Author(s) -
McBrien Neville A.,
Millodot Michel
Publication year - 1986
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1111/j.1475-1313.1986.tb01135.x
Subject(s) - autorefractor , refractive error , context (archaeology) , optometry , hypermetropia , optics , emmetropia , ophthalmology , eye disease , medicine , physics , biology , paleontology
— 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.