Soft contact lenses with stiffening rib features therein

Details Soft contact lenses with stiffening rib features therein Soft contact lenses with stiffening rib features therein

G - Physics

02

C

G02C 7/04 (2006.01)

Patent

CA 2575028

The present invention is related to a method for designing and making a contact lens which comprises stiffening rib features that provide even distribution of pressure from the lens over the cornea of an eye and/or allows the lens structure to maintain balance of forces for consistent and correct lens orientation on an eye during lens translation or eye lid movement. The invention also provides a soft contact lens comprising stiffening rib features that provides localized directional reinforcements to the lens structure to evenly distribute pressure from the lens over the cornea of an eye and/or to maintain balance of forces for consistent and correct lens orientation on an eye during lens translation or eye lid movement.

La présente invention a trait à un procédé pour la conception et la fabrication d'une lentille de contact comportant des éléments de nervure raidisseurs assurant une répartition uniforme de la pression dérivée de la lentille sur la cornée d'un oeil et/ou permettant le maintien par la structure de lentille d'un équilibre de forces pour l'orientation constante et correcte de lentille sur oeil lors d'une translation de lentille ou d'un mouvement de paupière. L'invention a également trait à une lentille de contact souple comportant des éléments de nervure raidisseurs qui assurent des renforts directionnels localisés à la structure de lentille en vue de la distribution uniforme de la pression dérivée de la lentille sur la cornée d'un oeil et/ou le maintien de l'équilibre de forces pour l'orientation constante et correcte de lentille sur un oeil lors d'une translation de lentille ou d'un mouvement de paupière.

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