G - Physics – 02 – C
Patent
G - Physics
02
C
88/40, 33/53, 33
G02C 7/04 (2006.01) G01B 11/24 (2006.01) G01B 11/26 (2006.01)
Patent
CA 1317802
ABSTRACT A contact lens comprising a corneal section, a vertical axis, and a shape adapted to maintain the lens at an intended orientation. The lens has either a visible horizontal line segment located in the corneal section perpendicular to the vertical axis and/or three visible radial line segments in the corneal section, the first of the line segments located on the vertical axis, and the second and third segments located on either side of the first segment such that the extensions of the segments would pass through a geometric center of the corneal section forming two 20° angles. The lens is useful for measuring the rotation of an assymetric lens. Methods for measuring lens rotation using the inventive lenses are also disclosed. P/PASP3303
601721
Drazba Martin
Hahn Paul
O'meara Robert J.
Reynolds John E.
Tomlinson Alan
Novartis Ag
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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