Systems and methods for treating ocular disease with an intraocular lens and refractive index writing
AssigneeAMO Groningen B.V.
InventorsRobert Rosen, Franck Emmanuel Gounou, Carmen Canovas Vidal, Aixa Alarcon Heredia
Life of this patent
Estimating the term…
Abstract
Systems and methods for improving vision of a subject implanted with an intraocular lens (IOL). In some embodiments, a method of treating an ocular disease of a subject having an implanted intraocular lens (IOL) includes determining visual needs of a subject that are associated with an ocular disease of the subject determining a pattern of a plurality of pulses of radiation to apply, by refractive index writing, and applying the plurality of pulses of radiation to the one or more selected areas of the IOL.
Claims18
A method of treating an ocular disease of a subject having an implanted intraocular lens (IOL), the method comprising:
- determining visual needs of the subject that are associated with the ocular disease of the subject;
- determining a pattern of a plurality of laser pulses to apply, by refractive index writing, to one or more selected areas of the IOL, wherein the determined pattern of the plurality of laser pulses is configured to induce a change in the implanted IOL to adapt the optical performance of the IOL to the visual needs of the subject;
- and
- wherein determining the pattern of the plurality of laser pulses to apply comprises calculating a radius of a phase shift for correcting for a residual spherical error, the radius of the phase shift being calculated according to factors that include an angular dependence and, at least in part, according to:
- r
- =
- m
-
- 2
-
- λ
- F
- 1
- +
- (
- F
- 2
- -
- F
- 1
- )
-
- ❘
- "\[LeftBracketingBar]"
- sin
-
- θ
- ❘
- "\[RightBracketingBar]"
- where λ is the wavelength, m is a natural number, θ is the angle, and F1 and F2 the power to be corrected in the respective meridians;
- and
- applying, according to the determined pattern, the plurality of focused laser pulses to the one or more selected areas of the IOL.
A method of treating an ocular disease of a subject having an implanted intraocular lens (IOL), the method comprising:
- determining visual needs of the subject that are associated with the ocular disease of the subject;
- determining a pattern of a plurality of laser pulses to apply, by refractive index writing, to one or more selected areas of the IOL, wherein the determined pattern of the plurality of laser pulses is configured to induce a change in the implanted IOL to adapt the optical performance of the IOL to the visual needs of the subject;
- determining parameters of a prism to be produced on the IOL to correct negative dysphotopsia of the subject, wherein the determining parameters comprises defining the prism based on power of the IOL and extension of the prism from respective outer edges of the IOL to the center of the IOL;
- wherein determining the pattern of the plurality of laser pulses to apply comprises determining a pattern of a plurality of laser pulses to apply to produce, through refractive index writing on the IOL, the prism having the determined parameters;
- and
- applying, according to the determined pattern, the plurality of focused laser pulses to the one or more selected areas of the IOL.
Dependencies are inferred from the claim text.