Intraocular lens with elastic mask

Abstract

Intraocular implants and methods of making intraocular implants are provided. The intraocular implant can include a lens body having a lens material and a mask having a mask material. The lens body can be secured to the mask. The mask material can include a modulus of elasticity that is greater than or equal to a modulus of elasticity of the lens material.

1 . (canceled) 
     
     
         2 . An intraocular lens comprising:
 an elastic lens body comprising a lens material, the elastic lens body comprising an anterior surface and a posterior surface; and   an elastic mask embedded in the elastic lens body, the elastic mask being substantially opaque to visible light, the elastic mask comprising a mask material that is the same as the lens material, the elastic mask having an aperture for improving depth of focus.   
     
     
         3 . The intraocular lens of  claim 2 , wherein the lens material and the mask material comprise silicone. 
     
     
         4 . The intraocular lens of  claim 2 , wherein the lens material and the mask material comprise acrylic. 
     
     
         5 . The intraocular lens of  claim 2 , wherein the elastic mask is embedded entirely between the posterior surface and the anterior surface of the elastic lens body. 
     
     
         6 . The intraocular lens of  claim 2 , wherein the elastic mask extends from the anterior surface of the elastic lens body to the posterior surface of the elastic lens body. 
     
     
         7 . The intraocular lens of  claim 2 , wherein the elastic mask comprises a thickness that is less than a thickness of the elastic lens body. 
     
     
         8 . The intraocular lens of  claim 2 , wherein the elastic mask comprises a thickness of less than or equal to about 200 microns. 
     
     
         9 . The intraocular lens of  claim 2 , wherein a diameter of the aperture is within a range of from 0.85 mm to 2.2 mm. 
     
     
         10 . The intraocular lens of  claim 2 , wherein the elastic lens body is flexible enough to be injected through an injector system and to revert back to its pre-injection shape. 
     
     
         11 . The intraocular lens of  claim 2 , wherein the elastic lens body is flexible enough to be injected through an incision less than 3.5 mm. 
     
     
         12 . The intraocular lens of  claim 2 , wherein a pre-injection optical power of the intraocular lens is within about 0.5 diopters of a post-injection optical power of the intraocular lens. 
     
     
         13 . The intraocular lens of  claim 2 , wherein the elastic mask is substantially transparent to at least some electromagnetic radiation in the near infrared spectrum. 
     
     
         14 . The intraocular lens of  claim 2 , wherein the elastic mask is bonded to the elastic lens body. 
     
     
         15 . The intraocular lens of  claim 2 , wherein the elastic mask is separately formed from the elastic lens body. 
     
     
         16 . The intraocular lens of  claim 2 , wherein the elastic mask comprises a plurality of holes characterized in that at least one of a hole size, shape, orientation, and spacing of the plurality of holes is varied to reduce a tendency of the plurality of holes to produce visible diffraction patterns. 
     
     
         17 . A method of manufacturing an intraocular lens, the method comprising:
 forming an elastic mask with an aperture for improving depth of focus from a mask material, the elastic mask being substantially opaque to visible light;   inserting a lens material into a mold, the lens material is the same as the mask material; and   curing the lens material to form an elastic lens body, the elastic lens body comprising the elastic mask therein.   
     
     
         18 . The method of  claim 17 , wherein forming the elastic mask comprises spin-casting, stamping, or extruding the mask material. 
     
     
         19 . The method of  claim 17 , wherein the elastic mask is substantially transparent to at least some electromagnetic radiation in the near infrared spectrum. 
     
     
         20 . The method of  claim 17 , wherein forming the elastic mask comprises forming a plurality of holes within a mask body, characterized in that at least one of a hole size, shape, orientation, and spacing of the plurality of holes is varied to reduce a tendency of the plurality of holes to produce visible diffraction patterns.