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 116
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… … Fig. 52.—Same case as Fig. 51, relieved by tenotomy. (R, R), or alter the accommodative convergence,but they alter the initial position (z, i) whichthe eyes assume in consequence of tonic conver-gence. We can alter The anatomical position (R, R) by tenotomy\The initial position (z, z) by prisms,The…
Lenses
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