Single microstructure lens, systems and methods
First Claim
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.
1 Assignment
0 Petitions
Accused Products
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.
190 Citations
44 Claims
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1. An ophthalmic lens comprising:
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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.
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2. An ophthalmic lens comprising:
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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. - View Dependent Claims (3)
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4. An ophthalmic lens comprising:
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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. - View Dependent Claims (5)
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6. An ophthalmic lens comprising:
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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. - View Dependent Claims (7, 8, 9)
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10. An ophthalmic lens comprising:
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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. - View Dependent Claims (11, 12, 13, 14, 15)
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16. An ophthalmic lens comprising:
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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. - View Dependent Claims (17, 18, 19, 20, 21)
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22. An ophthalmic lens comprising:
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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. - View Dependent Claims (23, 24, 25, 26, 27)
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28. An ophthalmic lens comprising:
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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. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
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36. An ophthalmic lens comprising:
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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. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44)
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Specification