Process for manufacturing an intraocular lens with an embedded mask

摘要

Intraocular implants and methods of making intraocular implants are provided. The intraocular implant can include a mask adapted to increase depth of focus. The method of manufacturing the implant can include positioning the mask with an aperture on a protruding pin of a positioning mold portion. The protruding pin can be configured to center the mask in the intraocular lens.

主权项

1. A mold set for manufacturing an intraocular lens having a mask suspended within the intraocular lens, the mold set comprising:
a first lens forming mold portion comprising:
a curved lens forming surface; anda cavity configured to hold at least a portion of a lens material, the cavity comprising an outer periphery configured to form an outer periphery of the intraocular lens; a positioning mold portion configured to position the mask within the lens material, the positioning mold portion being configured to mate with the first lens forming mold portion, the positioning mold portion comprising:
a body portion; anda protruding pin extending from the body portion, an end portion of the protruding pin having a first diameter sized to correspond to an aperture in the mask, the protruding pin being configured to control centration of the mask within the lens material, the protruding pin further comprising a shoulder portion having a second diameter that is larger than the first diameter, the shoulder portion being configured to control the depth of the mask within the lens material, wherein a diameter of the outer periphery of the cavity is greater than the second diameter of the shoulder portion.