a. Ophthalmic Surgery. Also -opaic, -opeic. [f. Gr. στεν-ός narrow + ὀπαῖ-ος perforated (f. ὀπή opening, hole) + -IC.] Of an eye-piece: Having only a narrow translucent aperture, designed to increase the accuracy of the sight by cutting off all obscurations. Hence of instruments, methods, etc.: Characterized by the use of a stenopæic eye-piece.
1864. W. D. Moore, trans. F. C. Donders, Anomalies in Accommod. & Refraction of the Eye, iv. 128. Stenopæic spectacles, stenopæic lorgnette, stenopæic apparatus. Ibid., 129. These reflexions on the injurious effect of obscurations led me to the application of stenopæic remedies. Their object is to cut off the light which should reach the obscurations.
1874. Lawson, Dis. Eye, 55. Stenopaic spectacles may be tried.
1895. Pop. Sci. Monthly, Aug., 470. A most useful appliance for viewing pictures is the so-called stenopaic slit.
