Methods and apparatuses for altering relative curvature of field and positions of peripheral, off-axis focal positions

• US 7,503,655 B2
• Filed: 02/07/2006
• Issued: 03/17/2009
• Est. Priority Date: 11/19/2003
• Status: Active Grant

• Current Assignee: Vision CRC Ltd.
• Original Assignee: Vision CRC Ltd.
• Inventors: Ho, Arthur, Holden, Brien Anthony, Smith, Earl Leo III
• Primary Examiner(s): DANG, HUNG XUAN
• Application Number:
  US11/349,295
• Publication Number:
  US 20070115431A1
• Time in Patent Office: 1,134 Days
• Field of Search: 351/221,205,200,246,247
• US Class Current: 351/246
• CPC Class Codes: A61B 3/00 Apparatus for testing the eyes; Instruments for examining the eyes eye inspection using ultrasonic, sonic or infrasonic waves A61B8/10; devices for treatment of the eyes A61F9/00; exercisers for the eyes A61H5/00; optical systems in general G02B
• CPC Class Codes: A61F 2/145 Corneal inlays, onlays, or lenses for refractive correction
• CPC Class Codes: A61F 2/16 Intraocular lenses
• CPC Class Codes: A61F 2/1613 having special lens configurations, e.g. multipart lenses; having particular optical properties, e.g. pseudo-accommodative lenses, lenses having aberration corrections, diffractive lenses, lenses for variably absorbing electromagnetic radiation, lenses having variable focus
• CPC Class Codes: A61F 2002/1699 Additional features not otherwise provided for
• CPC Class Codes: A61F 2009/00872 Cornea
• CPC Class Codes: A61F 9/00804 Refractive treatments
• CPC Class Codes: A61F 9/00821 for coagulation
• CPC Class Codes: G02C 2202/20 Diffractive and Fresnel lenses or lens portions
• CPC Class Codes: G02C 2202/24 Myopia progression prevention
• CPC Class Codes: G02C 7/02 Lenses; Lens systems ; Methods of designing lenses
• CPC Class Codes: G02C 7/042 Simultaneous type
• CPC Class Codes: G02C 7/047 Contact lens fitting; Contact lenses for orthokeratology; Contact lenses for specially shaped corneae

Abstract

A method and apparatus are disclosed for controlling optical aberrations to alter relative curvature of field by providing ocular apparatuses, systems and methods comprising a predetermined corrective factor to produce at least one substantially corrective stimulus for repositioning peripheral, off-axis, focal points relative to the central, on-axis or axial focal point while maintaining the positioning of the central, on-axis or axial focal point on the retina. The invention will be used to provide continuous, useful clear visual images while simultaneously retarding or abating the progression of myopia or hypermetropia.

Claims

1. A method for controlling optical aberrations to alter relative curvature of field comprising the steps of:

providing an ocular system comprising a predetermined aberration-controlled design;

controlling the forward-backward positions of the peripheral off-axis focal points relative to the central on-axis focal point;

said control of positions of peripheral focal points producing at least one substantially corrective stimulus;

providing the substantially corrective stimulus to an eye, to alter eye growth wherein the control of positions of peripheral focal points is effected while simultaneously controlling the forward-backward position of the central on-axis focal point near to the retina; and

substantially simultaneously providing clear visual images by insuring a predetermined central field focus to an eye retina and an eye fovea while substantially simultaneously eliminating stimulus for axial elongation.

2. The method according to claim 1, wherein the step of providing the ocular system to control the forward-backward positions of the peripheral off-axis focal points further comprises repositioning the peripheral off-axis focal points to positions located at distances from the cornea of the eye and towards the retina, said distances being less than or equal to the distance from the cornea to the retina.

3. The method according to claim 2, wherein, for an eye exhibiting myopia, the myopia is abated.

4. The method according to claim 2, wherein the ocular system is selected from the group consisting of spectacles, contact lenses, on-lays, in-lays, anterior chamber lenses, intraocular lenses, orthokeratology, refractive corneal sculpting and combinations thereof.

5. The method according to claim 4, wherein the contact lenses are selected from the group consisting of continuous wear contact lenses and extended wear contact lenses.

6. The method according to claim 4, wherein the refractive corneal sculpting method is selected from the group consisting of epikeratophakia, thermo-keratoplasty, LASIK surgery, LASEK surgery, and PRK surgery.

7. The method according to claim 2, wherein the stimulus is provided substantially continuously.

8. The method according to claim 1, wherein the step of controlling the forward-backward positions of the peripheral off-axis focal points further comprises, for an ocular system which exhibits astigmatism, repositioning peripheral off-axis line foci produced by astigmatism so that, of the two peripheral line foci produced by the astigmatism, a first peripheral line focus, which is closer to the cornea of the eye than a second peripheral line focus, is repositioned to a distance from the cornea of the eye and towards the peripheral retina, said distance being less than or equal to the distance from the cornea to the peripheral retina.

9. The method according to claim 8, wherein, for an eye exhibiting myopia, the myopia is abated.

10. The method according to claim 8, wherein the ocular system is selected from the group consisting of spectacles, contact lenses, on-lays, in-lays, anterior chamber lenses, intraocular lenses, orthokeratology, refractive corneal sculpting and combinations thereof.

11. The method according to claim 8, wherein the stimulus is provided substantially continuously.

12. The method according to claim 1, wherein the step of providing the ocular system to control the forward-backward positions of the peripheral off-axis focal points further comprises repositioning the peripheral focal points to positions located at distances from the cornea of the eye and towards the retina, said distances being greater than the distance from the cornea to the retina.

13. The method according to claim 12, wherein, for an eye exhibiting hypermetropia, the hypermetropia is abated.

14. The method according to claim 12, wherein the ocular system is selected from the group consisting of spectacles, contact lenses, on-lays, in-lays, anterior chamber lenses, intraocular lenses, orthokeratology, refractive corneal sculpting and combinations thereof.

15. The method according to claim 14, wherein the contact lenses are selected from the group consisting of continuous wear contact lenses and extended wear contact lenses.

16. The method according to claim 14, wherein the refractive corneal sculpting method is selected from the group consisting of epikeratophakia, thermo-keratoplasty, LASIK surgery, LASEK surgery, and PRK surgery.

17. The method according to claim 12, wherein the stimulus is provided substantially continuously.

18. The method according to claim 1, wherein the step of controlling the forward-backward positions of the peripheral off-axis focal points further comprises, for an ocular system which exhibits astigmatism, repositioning peripheral off-axis line foci produced by astigmatism so that, of the two peripheral line foci produced by the astigmatism, a first peripheral line focus, which is further from the cornea of the eye than a second peripheral line focus, is repositioned to a distance from the cornea of the eye and towards the peripheral retina, said distance being greater than or equal to the distance from the cornea to the peripheral retina.

19. The method according to claim 18, wherein, for an eye exhibiting hypermetropia, the hypermetropia is abated.

20. The method according to claim 18, wherein the ocular system is selected from the group consisting of spectacles, contact lenses, on-lays, in-lays, anterior chamber lenses, intraocular lenses, orthokeratology, refractive corneal sculpting and combinations thereof.

21. The method according to claim 18, wherein the stimulus is provided substantially continuously.

22. An ocular system comprising:

a predetermined corrective factor to control the forward-backward positions of the peripheral off-axis focal points relative to the central on-axis focal point to produce at least one substantially corrective stimulus to an eye to alter eye growth;

wherein the control of positions of peripheral focal points is effected while simultaneously controlling the forward-backward position of the central on-axis focal point near to the retina, and substantially simultaneously providing clear visual images;

said system insuring a predetermined central field focus to an eye retina and an eye fovea while substantially simultaneously eliminating stimulus for axial elongation of the eye.

23. The system according to claim 22, wherein the predetermined corrective factor controlling the forward-backward positions of the peripheral off-axis focal points further predictably controls the repositioning of said peripheral off-axis focal points to positions located at distances from the cornea of the eye and towards the retina, said distance being less than or equal to the distance from the cornea to the retina.

24. The system according to claim 23, wherein the ocular system is selected from the group consisting of spectacles, contact lenses, on-lays, in-lays, anterior chamber lenses, intraocular lenses, orthokeratology, refractive corneal sculpting and combinations thereof.

25. The system according to claim 24, wherein the contact lenses are selected from the group consisting of continuous wear contact lenses and extended wear contact lenses.

26. The system according to claim 24, wherein the refractive corneal sculpting method is selected from the group consisting of epikeratophakia, thermo-keratoplasty, LASIK surgery, LASEK surgery, and PRK surgery.

27. The system according to claim 22, wherein the step of controlling the forward-backward positions of the peripheral off-axis focal points further comprises, for an ocular system which exhibits astigmatism, repositioning peripheral off-axis line foci produced by astigmatism so that, of the two peripheral line foci produced by the astigmatism, a first peripheral line focus, which is closer to the cornea of the eye than a second peripheral line focus, is repositioned to a distance from the cornea of the eye and towards the peripheral retina, said distance being less than or equal to the distance from the cornea to the peripheral retina.

28. The system according to claim 27, wherein the ocular system is selected from the group consisting of spectacles, contact lenses, on-lays, in-lays, anterior chamber lenses, intraocular lenses, orthokeratology, refractive corneal sculpting and combinations thereof.

29. The system according to claim 22, wherein the predetermined corrective factor controlling the forward-backward positions of the peripheral off-axis focal points further predictably controls the repositioning of said peripheral off-axis focal points to positions located at distances from the cornea of the eye and towards the retina, said distance being greater than the distance from the cornea to the retina.

30. The system according to claim 29, wherein the ocular system is selected from the group consisting of spectacles, contact lenses, on-lays, in-lays, anterior chamber lenses, intraocular lenses, orthokeratology, refractive corneal sculpting and combinations thereof.

31. The system according to claim 30, wherein the contact lenses are selected from the group consisting of continuous wear contact lenses and extended wear contact lenses.

32. The system according to claim 30, wherein the refractive corneal sculpting method is selected from the group consisting of epikeratophakia, thermo-keratoplasty, LASIK surgery, LASEK surgery, and PRK surgery.

33. The system according to claim 22, wherein the step of controlling the forward-backward positions of the peripheral off-axis focal points further comprises, for an ocular system which exhibits astigmatism, repositioning peripheral off-axis line foci produced by astigmatism so that, of the two peripheral line foci produced by the astigmatism, a first peripheral line focus, which is further from the cornea of the eye than a second peripheral line focus, is repositioned to a distance from the cornea of the eye and towards the peripheral retina, said distance being greater than or equal to the distance from the cornea to the peripheral retina.

34. The system according to claim 33, wherein the ocular system is selected from the group consisting of spectacles, contact lenses, on-lays, in-lays, anterior chamber lenses, intraocular lenses, orthokeratology, refractive corneal sculpting and combinations thereof.

35. An ocular device comprising predetermined aberrations to deliver at least one predetermined stimulus to an eye and predictably controlling the forward-backward positions of the peripheral off-axis focal points relative to the central on-axis focal point;

wherein said device further comprises a predetermined prescriptive strength;

said prescriptive strength predictably controlling the forward-backward position of the central on-axis focal point on to the retina; and

substantially providing clear visual images, said device insuring a predetermined central field focus to an eye retina and an eye fovea while substantially simultaneously eliminating stimulus for axial elongation of the eye; and

wherein said device maintains substantial axial alignment with said eye.

36. The device according to claim 35, wherein the predetermined aberrations controlling the forward-backward positions of the peripheral off-axis focal points further predictably controls the repositioning of said peripheral off-axis focal points to positions located at distances from the cornea of the eye and towards the retina, said distance being less than or equal to the distance from the cornea to the retina.

37. The device according to claim 36, wherein the device is selected from the group consisting of spectacles, contact lenses, on-lays, in-lays, anterior chamber lenses and intraocular lenses.

38. The device according to claim 37, wherein the contact lenses are selected from the group consisting of continuous wear contact lenses and extended wear contact lenses.

39. The device according to claim 35, wherein the step of controlling the forward-backward positions of the peripheral off-axis focal points further comprises, for a device which when in combination with the eye which exhibits astigmatism, repositioning peripheral off-axis line foci produced by astigmatism so that, of the two peripheral line foci produced by the astigmatism, a first peripheral line focus, which is closer to the cornea of the eye than a second peripheral line focus, is repositioned to a distance from the cornea of the eye and towards the peripheral retina, said distance being less than or equal to the distance from the cornea to the peripheral retina.

40. The device according to claim 39, wherein the device is selected from the group consisting of spectacles, contact lenses, on-lays, in-lays, anterior chamber lenses and intraocular lenses.

41. The device according to claim 35, wherein the predetermined aberrations controlling the forward-backward positions of the peripheral off-axis focal points further predictably controls the repositioning of said peripheral off-axis focal points to positions located at distances from the cornea of the eye and towards the retina, said distances being greater than the distance from the cornea to the retina.

42. The device according to claim 41, wherein the device is selected from the group consisting of spectacles, contact lenses, on-lays, in-lays, anterior chamber lenses and intraocular lenses.

43. The device according to claim 42, wherein the contact lenses are selected from the group consisting of continuous wear contact lenses and extended wear contact lenses.

44. The device according to claim 35, wherein the step of controlling the forward-backward positions of the peripheral off-axis focal points further comprises, for a device which when in combination with the eye which exhibits astigmatism, repositioning peripheral off-axis line foci produced by astigmatism so that, of the two peripheral line foci produced by the astigmatism, a first peripheral line focus, which is further from the cornea of the eye than a second peripheral line focus, is repositioned to a distance from the cornea of the eye and towards the peripheral retina, said distance being greater than or equal to the distance from the cornea to the peripheral retina.

45. The device according to claim 44, wherein the device is selected from the group consisting of spectacles, contact lenses, on-lays, in-lays, anterior chamber lenses and intraocular lenses.

46. The device according to claim 35, wherein the device is a made from a silicone hydrogel-containing material.

47. An ocular device comprising predetermined aberrations to deliver at least one predetermined stimulus to an eye and predictably controlling the forward-backward positions of the peripheral off-axis focal points relative to the central on-axis focal point;

wherein said device further comprises a predetermined prescriptive strength;

said prescriptive strength predictably controlling the forward-backward position of the central on-axis focal point on to the retina; and

substantially providing clear visual images, said device insuring a predetermined central field focus to an eye retina and an eye fovea while substantially simultaneously eliminating stimulus for axial elongation of the eye by controlling the relative curvature of field by controlling the positions of the off-axis peripheral focal points presented to the eye and wherein said device maintains substantial axial alignment with said eye.

48. The ocular device according to claim 47, wherein the minimum amount of relative curvature of field is from about +0.00 D to about +0.50 D.

49. The ocular device according to claim 47, wherein the maximum amount of relative curvature is from about +3.50 D to about +4.00 D.