Laminated composite lens

摘要

The present invention is directed to a composite lens, comprising an anterior rigid gas permeable layer, and an annulus of soft material bonded to a posterior surface of the anterior rigid gas permeable layer, wherein a central zone of the composite lens is rigid and without a soft layer, wherein a peripheral zone of the composite lens is generally rigid in its anterior aspect and soft in its posterior aspect.

主权项

1. A composite lens, comprising:
a central zone and a peripheral zone; an anterior rigid layer; and an annulus of soft material bonded to a single posterior surface of the anterior rigid layer; wherein the central zone is rigid and without a posterior soft layer; wherein a peripheral aspect of the central zone is rigid in its anterior aspect and soft in its posterior aspect; and wherein the peripheral zone is soft and without an anterior rigid layer, wherein a radial width of the soft annulus is 250 microns to 5 mm, such that an edge of the composite lens is formed solely by the soft material transitioning anterior-ward to and extending substantially peripheral to the anterior rigid layer.