Single microstructure lens, systems and methods

• US 8,430,508 B2
• Filed: 12/17/2010
• Issued: 04/30/2013
• Est. Priority Date: 12/18/2009
• Status: Active Grant

• Current Assignee: Amo Groningen B.V (Johnson & Johnson)
• Original Assignee: Amo Groningen B.V (Johnson & Johnson)
• Inventors: Weeber, Hendrik A.
• Primary Examiner(s): Collins, Darryl J
• Application Number:
  US12/971,506
• Publication Number:
  US 20110149236A1
• Time in Patent Office: 865 Days
• Field of Search: 351/159.01, 351/159.02, 35115911-15913, 351/159.15, 351/159.26, 351/159.35, 351/159.44, 35115974-15977
• US Class Current: 351/159.35
• CPC Class Codes: A61B 2034/104 Modelling the effect of the tool, e.g. the effect of an implanted prosthesis or for predicting the effect of ablation or burring
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• 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 2/1618 Multifocal lenses
• CPC Class Codes: A61F 2/1637 Correcting aberrations caused by inhomogeneities; correcting intrinsic aberrations, e.g. of the cornea, of the surface of the natural lens, aspheric, cylindrical, toric lenses
• CPC Class Codes: A61F 2/164 Aspheric lenses
• CPC Class Codes: A61F 2/1645 Toric lenses
• CPC Class Codes: A61F 2/1654 Diffractive lenses
• CPC Class Codes: A61F 2230/0006 circular
• CPC Class Codes: G02B 27/0075 with means for altering, e.g. increasing, the depth of field or depth of focus
• CPC Class Codes: G02C 2202/20 Diffractive and Fresnel lenses or lens portions
• CPC Class Codes: G02C 7/022 Ophthalmic lenses having special refractive features achieved by special materials or material structures G02C7/049 takes precedence
• CPC Class Codes: G02C 7/027 considering wearer's parameters
• CPC Class Codes: G02C 7/041 bifocal; multifocal
• CPC Class Codes: G02C 7/044 Annular configuration, e.g. pupil tuned
• CPC Class Codes: G02C 7/049 Contact lenses having special fitting or structural features achieved by special materials or material structures
• CPC Class Codes: G02C 7/06 bifocal; multifocal ; progressive G02C7/041 takes precedence
• CPC Class Codes: G02C 7/061 Spectacle lenses with progressively varying focal power

Abstract

Systems and methods for providing enhanced image quality across a wide and extended range of foci encompass vision treatment techniques and ophthalmic lenses such as contact lenses and intraocular lenses (IOLs). Exemplary IOL optics can include a circular surface structure which acts as a diffractive or phase shifting profile. In some cases, a single ring IOL includes an anterior face and a posterior face, where a profile can be imposed on the anterior or posterior surface or face. The profile can have an inner portion such as a microstructure or central echelette, and an outer portion. Between the inner portion and the outer portion, there may be a transition zone that connects the inner and outer portions.

Claims

1. An ophthalmic lens comprising:

an anterior face and an opposing posterior face, the faces disposed about an optical axis;

and only one isolated echelette imposed on either the anterior face or the posterior face, wherein the face opposing the face upon which the isolated echelette is located has a toric profile.

2. An ophthalmic lens comprising:

an anterior face and an opposing posterior face, the faces disposed about an optical axis;

and only one isolated echelette imposed on either the anterior face or the posterior face, wherein the isolated echelette is disposed within a central zone of the lens.

3. The ophthalmic lens of claim 2, wherein the face opposing the face upon which the isolated echelette is located has a toric profile.

4. An ophthalmic lens comprising:

an anterior face and an opposing posterior face, the faces disposed about an optical axis;

and only one isolated echelette imposed on either the anterior face or the posterior face, wherein the isolated echelette surrounds a central refractive zone of the lens.

5. The ophthalmic lens of claim 4, wherein the face opposing the face upon which the isolated echelette is located has a toric profile.

6. An ophthalmic lens comprising:

an anterior face and an opposing posterior face, the faces disposed about an optical axis;

and only one isolated echelette imposed on either the anterior face or the posterior face, wherein the lens comprises a peripheral zone that surrounds the isolated echelette.

7. The ophthalmic lens of claim 6, wherein the face opposing the face upon which the isolated echelette is located has a toric profile.

8. The ophthalmic lens of claim 6, wherein the isolated echelette is disposed within a central zone of the lens.

9. The ophthalmic lens of claim 6, wherein the isolated echelette surrounds a central refractive zone of the lens.

10. An ophthalmic lens comprising:

an anterior face and an opposing posterior face, the faces disposed about an optical axis;

and only one isolated echelette imposed on either the anterior face or the posterior face, wherein the isolated echelette is characterized by a surface area between 1 and 7 square millimeters.

11. The ophthalmic lens of claim 10, wherein the isolated echelette has a diameter within a range from about 1 mm to about 5 mm.

12. The ophthalmic lens of claim 10, wherein the face opposing the face upon which the isolated echelette is located has a toric profile.

13. The ophthalmic lens of claim 10, wherein the isolated echelette is disposed within a central zone of the lens.

14. The ophthalmic lens of claim 10, wherein the isolated echelette surrounds a central refractive zone of the lens.

15. The ophthalmic lens of claim 10, wherein the lens comprises a peripheral zone that surrounds the isolated echelette.

16. An ophthalmic lens comprising:

an anterior face and an opposing posterior face, the faces disposed about an optical axis;

and only one isolated echelette imposed on either the anterior face or the posterior face, wherein the isolated echelette is characterized by a parabolic curve.

17. The ophthalmic lens of claim 16, wherein the face opposing the face upon which the isolated echelette is located has a toric profile.

18. The ophthalmic lens of claim 16, wherein the isolated echelette is disposed within a central zone of the lens.

19. The ophthalmic lens of claim 16, wherein the isolated echelette surrounds a central refractive zone of the lens.

20. The ophthalmic lens of claim 16, wherein the lens comprises a peripheral zone that surrounds the isolated echelette.

21. The ophthalmic lens of claim 16, wherein the isolated echelette is characterized by a surface area between 1 and 7 square millimeters.

22. An ophthalmic lens comprising:

an anterior face and an opposing posterior face, the faces disposed about an optical axis;

and only one isolated echelette imposed on either the anterior face or the posterior face, wherein the lens further comprises a peripheral portion characterized by a spherical curve or an aspherical curve, and wherein the peripheral portion has a refractive profile.

23. The ophthalmic lens of claim 22, wherein the face opposing the face upon which the isolated echelette is located has a toric profile.

24. The ophthalmic lens of claim 22, wherein the isolated echelette is disposed within a central zone of the lens.

25. The ophthalmic lens of claim 22, wherein the isolated echelette surrounds a central refractive zone of the lens.

26. The ophthalmic lens of claim 22, wherein the isolated echelette is characterized by a surface area between 1 and 7 square millimeters.

27. The ophthalmic lens of claim 22, wherein the isolated echelette is characterized by a parabolic curve.

28. An ophthalmic lens comprising:

an anterior face and an opposing posterior face, the faces disposed about an optical axis;

and only one isolated echelette imposed on either the anterior face or the posterior face, wherein the isolated echelette is characterized by a step height having a value within a range from about 0.5 μ

m and about 4 μ

m.

29. The ophthalmic lens of claim 28, wherein the face opposing the face upon which the isolated echelette is located has a toric profile.

30. The ophthalmic lens of claim 28, wherein the isolated echelette is disposed within a central zone of the lens.

31. The ophthalmic lens of claim 28, wherein the isolated echelette surrounds a central refractive zone of the lens.

32. The ophthalmic lens of claim 28, wherein the lens comprises a peripheral zone that surrounds the isolated echelette.

33. The ophthalmic lens of claim 28, wherein the isolated echelette is characterized by a surface area between 1 and 7 square millimeters.

34. The ophthalmic lens of claim 28, wherein the isolated echelette is characterized by a parabolic curve.

35. The ophthalmic lens of claim 28, wherein the lens further comprises a peripheral portion characterized by a spherical curve or an aspherical curve, and wherein the peripheral portion has a refractive profile.

36. An ophthalmic lens comprising:

an anterior face and an opposing posterior face, the faces disposed about an optical axis;

and only one isolated echelette imposed on either the anterior face or the posterior face, wherein the lens provides an MTF volume of at least 35% over a continuous range of at least about 0.75 D.

37. The ophthalmic lens of claim 36, wherein the face opposing the face upon which the isolated echelette is located has a toric profile.

38. The ophthalmic lens of claim 36, wherein the isolated echelette is disposed within a central zone of the lens.

39. The ophthalmic lens of claim 36, wherein the isolated echelette surrounds a central refractive zone of the lens.

40. The ophthalmic lens of claim 36, wherein the lens comprises a peripheral zone that surrounds the isolated echelette.

41. The ophthalmic lens of claim 36, wherein the isolated echelette is characterized by a surface area between 1 and 7 square millimeters.

42. The ophthalmic lens of claim 36, wherein the isolated echelette is characterized by a parabolic curve.

43. The ophthalmic lens of claim 36, wherein the lens further comprises a peripheral portion characterized by a spherical curve or an aspherical curve, and wherein the peripheral portion has a refractive profile.

44. The ophthalmic lens of claim 36, wherein the isolated echelette is characterized by a step height having a value within a range from about 0.5 μ

m and about 4 μ

m.