amplitude of accommodation

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adjustment, especially adjustment of the eye for seeing objects at various distances. This is accomplished by the ciliary muscle, which controls the lens of the eye, allowing it to flatten or thicken as is needed for distant or near vision.
Flattening and rounding of lens during accommodation.
absolute accommodation the accommodation of either eye separately.
amplitude of accommodation range of accommodation.
histologic accommodation changes in morphology and function of cells following changed conditions.
negative accommodation adjustment of the eye for long distances by relaxation of the ciliary muscle.
positive accommodation adjustment of the eye for short distances by contraction of the ciliary muscle.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

am·pli·tude of ac·com·mo·da·tion

the difference in refractivity of the eye at rest and when fully accommodated.
Farlex Partner Medical Dictionary © Farlex 2012

am·pli·tude of ac·com·mo·da·tion

(am'pli-tūd ă-kom'ŏ-dā'shŭn)
The difference in refractivity of the eye at rest and when fully accommodated.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Abbreviations: AOA = amplitude of accommodation, BVA = Binocular Vision Assessment, CISS = Convergence Insufficiency Symptoms Survey, COR = coefficient of repeatability, COVS = computerized oculomotor vision screening, cpm = cycles per minute, D = diopter, LOA = limit of agreement, MANOVA = multivariate analysis of variance, mTBI = mild traumatic brain injury, NFV = negative fusional vergence, NPC = near point of convergence, PD = prism diopter, PFV = positive fusional vergence, RDS = random dot stereogram, SD = standard deviation, USAARL = U.S.
(34) Clinical tests show a reduction in the amplitude of accommodation, reduced accommodative facility, reduced near vision/ visual acuity and an exophoria at near on cover test that becomes relatively esophoric if the patient tries to exert more accommodation.

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