accommodative convergence: accommodation ratio

(redirected from accommodative convergence accommodation ratio)

ac·com·mo·da·tive con·ver·gence: ac·com·mo·da·tion ra·ti·o

(AC:A) (ă-kom'ŏ-dā'tiv kŏn-vĕr'jĕns ă-kom'ŏ-dā'shŭn rā'shē-ō)
The amount of convergence (measured in prism diopters of convergence) divided by the amount of accommodation (measured in diopters) required to direct both eyes on an object.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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