Masked intraocular implants and lenses

Abstract

Intraocular implants and methods of making intraocular implants are provided. The intraocular implants can improve the vision of a patient, such as by increasing the depth of focus of an eye of a patient. In particular, the intraocular implants can include a mask having an annular portion with a relatively low visible light transmission surrounding a relatively high transmission central portion such as a clear lens or aperture. This construct is adapted to provide an annular mask with a small aperture for light to pass through to the retina to increase depth of focus. The intraocular implant may have an optical power for refractive correction. The intraocular implant may be implanted in any location along the optical pathway in the eye, e.g., as an implant in the anterior or posterior chamber.

1 . A intraocular implant comprising:
 an implant body comprising a body material;   a mask with an aperture positioned within the implant body, the mask comprises a plurality of holes that extend between a posterior surface and an anterior surface of the mask; and   wherein the body material extends through the plurality of holes of the mask, and further wherein the plurality of holes are characterized in that at least one of the hole size, shape, orientation, and spacing of the plurality of holes is varied to reduce the tendency of the holes to produce visible diffraction patterns.   
     
     
         2 . The intraocular implant of  claim 1 , wherein the plurality of holes are positioned at irregular locations. 
     
     
         3 . The intraocular implant of  claim 1 , wherein a plurality of the holes comprise first hole size, shape or spacing and at least another plurality of holes comprise a second hole size, shape, or spacing different from the first holes size, shape, or spacing. 
     
     
         4 . The intraocular implant of  claim 1 , wherein a first plurality of the holes comprise first hole size, a second plurality of the holes comprise a second hole size different form the third hole size, and a third plurality of holes comprise a third hole size different from the first holes size and the second hole size. 
     
     
         5 . The intraocular implant of  claim 1 , wherein the aperture comprises a diameter of from about 0.85 mm to about 1.8 mm. 
     
     
         6 . The intraocular implant of  claim 1 , wherein the mask comprises an outer diameter of from about 3 mm to about 5 mm. 
     
     
         7 . The intraocular implant of  claim 1 , wherein the mask increases depth of focus of a patient. 
     
     
         8 . The intraocular device of  claim 1 , further comprising at least one haptic attached to the implant body to support the intraocular device after being implanted within an eye.