n. [ Gr. 'ofqalmo`s eye + -meter. ] (Physiol.) An instrument devised by Helmholtz for measuring the size of a reflected image on the convex surface of the cornea and lens of the eye, by which their curvature can be ascertained. [ 1913 Webster ]
n. [ Gr. 'ofqalmo`s eye + -meter. ] (Physiol.) An instrument devised by Helmholtz for measuring the size of a reflected image on the convex surface of the cornea and lens of the eye, by which their curvature can be ascertained. [ 1913 Webster ]
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