Hydrogel lens having raised portions for improved oxygen transmission and tear flow

1. An ophthalmic device comprising:

a hydrogel lens including at least three concentric zones comprising an optic zone, an outer zone, and a peripheral zone located between the optic zone and the outer zone; and

an ocular insert in the optic zone;

wherein the peripheral zone of the hydrogel lens includes a plurality of elongated raised portions on the surface of the hydrogel lens proximal to an ocular surface of a wearer's eye that are separated by gap portions between adjacent elongated raised portions such that none of the elongated raised portions fully encircle the optic zone;

wherein the optic zone and the outer zone of the hydrogel lens do not include raised portions, and

wherein the elongated raised portions comprise a more rigid material than the remaining portions of the hydrogel lens.

2. The ophthalmic device of claim 1 wherein the gap portions allow for oxygen transmission and tear flow.

3. The ophthalmic device of claim 1 wherein the raised portions prevent unwanted adhesion of the ophthalmic device to the ocular surface.

4. The ophthalmic device of claim 1 wherein the raised portions are configured to create a cavity between the ocular surface and the hydrogel lens.

5. The ophthalmic device of claim 4 wherein oxygen transmission and tear flow occurs in the cavity.

6. The ophthalmic device of claim 4 wherein the cavity has thickness that is at least 10% of the thickness of the hydrogel lens.

7. The ophthalmic device of claim 1 wherein the raised portions are arranged along the circumference of the ocular insert.

8. The ophthalmic device of claim 1 wherein the hydrogel lens supports the ocular insert.

9. The ophthalmic device of claim 1 wherein the hydrogel lens encapsulates the ocular insert.

10. The ophthalmic device of claim 1 wherein the elongated raised portions comprise hydrogel material that is different from the hydrogel material of the remaining portions of the hydrogel lens.

11. The ophthalmic device of claim 1 wherein the raised portions comprise silicon hydrogel.

12. The ophthalmic device of claim 1 wherein the hydrogel lens comprises a silicon hydrogel.

13. The ophthalmic device of claim 1 wherein the hydrogel lens and raised portions are formed by cast molding.

14. The ophthalmic device of claim 1 wherein the raised portions have a total surface area less than 50% of the surface area of the ocular surface.

15. The ophthalmic device of claim 1 , wherein each of the raised portions has substantially the same height.