G - Physics – 02 – C
Patent
G - Physics
02
C
G02C 7/04 (2006.01) A61F 2/16 (2006.01) G02C 7/06 (2006.01)
Patent
CA 2233062
A contact lens with a central region (10) that is optimally less than approximately 1.9 millimeters in diameter and that is preferably overcorrected by approximately 25 % to 100 % over the correction needed for reading. Unexpectedly, the central region (10) does not impair distance vision, but compensates for presbyopia and therefore alows a user to focus on objects within a range of near and intermediate distances. A method for fitting the contact lens is also provided.
Cette lentille de contact présente une zone centrale (10) dont le diamètre est de préférence inférieur à 1,9 millimètre et qui est de préférence surcorrigée d'environ 25 à 100 % par rapport à la correction nécessaire à la lecture. Etonnamment, la zone centrale (10) n'empêche pas l'acuité visuelle en vision de loin mais compense la presbytie et permet donc à l'utilisateur une mise au point sur des objets situés à distance proche et à distance intermédiaire. L'invention concerne également un procédé d'ajustement de la lentille de contact.
Dimock Stratton Llp
Polyvue Bahamas Ltd.
LandOfFree
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