The clinical use of prisms; and the decentering of lenses (1893)
Maddox, Ernest Edmund, 1860-1933 · Bristol : J. Wright ; London : Simpkin, Marshall, Hamilton, Kent · leaf 115
Fig. 50.—Higli fusion supplement (ao) from deficient tonicconvergence (Ri). use the tests described on p. 120. Since the thirdgrade of convergence is complementary to the … Fig. 51.—Same case as Fig. 50, relieved by prisms. other two, its amount can be altered by alteringthem. In Fig. 50, for instance, the tonic conver- THE STUDY OF CONVERGENCE. :oi gence is deficient, the accommodative convergencenormal, and the reflex convergence, therefore,excessive. The relief of…
Lenses
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