Ophthalmic lenses, dioptric formulae for combined cylindrical lenses : the prism-dioptry, and other optical papers (1900)
Prentice, Charles Frederick, b. 1854 · Philadelphia : Keystone · leaf 49
ation; wherefore, in prescribingeither of the aforesaid sphero-cylindrical equivalents, a preference might begiven to that form which would be commensurate with the inherent physicaland physiological developments above alluded to. TORIC LENSES. CONGENERIC AND CONTRA-GENERIC MERIDIANS. § 42. The…
Lenses
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