Contact lens comprising lenticular-like curve

Patent metadata

Field	Value
Publication number	US-10191302-B2
Application number	US-201615274159-A
Country	US
Kind code	B2
Filing date	Sep 23, 2016
Priority date	Sep 23, 2015
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

Disclosed herein is a contact lens comprising a rounded, minus-carrier, lenticular-like curve over a central, upper portion of the lens that allows the contact lens to translate upwards in downgaze.

First claim

What is claimed is:

1. A contact lens comprising a superior lenticular aspect located in a central, upper portion of the lens, wherein the superior lenticular aspect of the lens is shaped to interact with an upper tarsal plate of an upper eyelid of a wearer such that the contact lens translates upward in a downgaze of the wearer to place a viewing zone of the contact lens over a pupil or cornea of the wearer and the superior lenticular aspect provides rotational stabilization to the contact lens.

2. The contact lens of claim 1 , wherein the lens is a soft contact lens.

3. The contact lens of claim 1 , wherein the lens is a rigid gas permeable contact lens.

4. The contact lens of claim 1 , wherein the lens is a hybrid contact.

5. The contact lens of claim 1 , wherein the superior lenticular aspect provides centration to the contact lens.

6. The contact lens of claim 1 , wherein the central, upper portion of the contact lens comprises between 10% and 50% of an area between an upper edge of the contact lens and a geometric center of the contact lens.

7. The contact lens of claim 1 , wherein the contact lens has an outer edge, and wherein the outer edge is relatively thicker in the central, upper portion of the lens proximate the superior lenticular aspect compared to a remainder of the outer edge.

8. The contact lens of claim 1 , wherein the contact lens is used to treat ametropia.

9. The contact lens of claim 1 , wherein the contact lens is used to treat presbyopia, other accommodative disorders, or a binocular vision disorder.

10. The contact lens of claim 1 , wherein the superior lenticular aspect is rounded and has a thickest portion relative to other portions of the superior lenticular aspect and the thickest portion is one of 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, or 5.0 millimeters away from the outer edge of the contact lens.

11. The contact lens of claim 1 , wherein the superior lenticular aspect comprises a rounded, minus-carrier, lenticular curve.

12. The contact lens of claim 1 , wherein the contact lens comprises a multi-focal contact lens.

13. The contact lens of claim 1 , wherein the multi-focal contact lens comprises a bifocal contact lens.

14. The contact lens of claim 1 , wherein the lens comprises a liquid crystal material, a photochromic material, a sensor, or a filter.

15. The contact lens of claim 14 , wherein the contact lens further comprises the liquid crystal display and the liquid crystal display is used to display an electronically-generated and/or other virtual optically-displayed image.

16. The contact lens of claim 1 , wherein the contact lens comprises a base down prism.

17. The contact lens of claim 16 , wherein the relatively thicker area comprises a thickest portion, which is 2 to 5 times thicker than any remaining portion of the contact lens other than the base down prism.

18. The contact lens of claim 16 , wherein the base down prism comprises a base having a thickness greater than a top of the prism.

19. The contact lens of claim 18 , wherein the base down prism provides a change in power from a central optic zone of the contact lens.

20. The contact lens of claim 18 , wherein an edge of the upper eyelid squeezes the thicker base of the prism downwards with each blink.

21. The contact lens of claim 18 , wherein the base of the prism is configured such that it interacts with a lower eyelid with each blink of the wearer, so that the base of the prism remains above a lower eyelid margin.

22. The contact lens of claim 21 , wherein the base of the prism is configured such that it does not slide more than 2 mm behind the lower eyelid, when the wearer is looking straight ahead and/or downwards, when the eye is open and during a blink.

23. The contact lens of claim 21 , wherein the viewing zone of the contact lens is one of a plurality of viewing zones comprising at least a distance viewing zone and a near viewing zone, and the contact lens translates upwards in the downgaze of the wearer so that at least one of the distance viewing zone and the near viewing zone remains above the lower eyelid margin when the eye is open.

24. A method of making a contact lens, the method comprising manufacturing a contact lens comprising forming a superior lenticular aspect located in a central, upper portion of the lens, wherein the superior lenticular aspect of the lens is shaped to interact with an upper tarsal plate of an upper eyelid of a wearer such that the contact lens translates upward in a downgaze of the wearer to place a viewing zone of the contact lens over a pupil or cornea of the wearer and the superior lenticular aspect provides rotational stabilization to the contact lens.

25. The method of claim 24 , wherein the method further comprises forming a base down prism in an inferior portion of the lens.

26. The method of claim 25 , wherein forming the superior lenticular aspect located in the central, upper portion of the lens occurs during a first step of a manufacturing process and the base down prism is added to the lens in a second step of the manufacturing process.

Assignees

• Ohio State Innovation Foundation

Inventors

• Bailey Melissa D
• Barr Joseph T

Classifications

• G02C7/047

  Contact lens fitting; Contact lenses for orthokeratology; Contact lenses for specially shaped corneae · CPC title

• G02C7/049

  Contact lenses having special fitting or structural features achieved by special materials or material structures · CPC title

• G02C7/045

  Sectorial configuration · CPC title

• G02C7/048 Primary

  Means for stabilising the orientation of lenses in the eye · CPC title

• G02C7/043 Primary

  Translating type · CPC title