Contact lens having peripheral high modulus zones

摘要

Soft contact lens having regions of a material forming one or more higher modulus of elasticity zones in the peripheral region of the lenses add stiffness to the contact lenses. This increased stiffness in different zones or regions enable the contact lens to be more easily handled and make it less likely to fold in on itself.

主权项

1. An ophthalmic lens comprising:
an optic zone configured for vision correction, the optic zone being formed from a first material having a first modulus of elasticity; a peripheral zone surrounding the optic zone, the peripheral zone being formed from the first material and defining a superior region, amid periphery region and an inferior region; and multiple active zones of added thickness positioned in the midperiphery region; thin zones positioned in the superior and inferior regions; one or more high modulus of elasticity zones incorporated into at least a portion of the thin zones in the peripheral zone, the one or more high modulus of elasticity zones being formed from a second material having a second modulus of elasticity.