Alexander, James R.,Miller, Troy A.,Dishler, Jon,Vatz, Alexander
申请号：
AU2007220915
公开号：
AU2007220915B2
申请日:
2007.02.20
申请国别(地区):
AU
年份:
2012
代理人:
摘要：
Provided herein are small diameter inlays for correcting vision impairments by altering the shape of the anterior corneal surface. In an embodiment, inlays having diameters smaller than the pupil are provided for correcting presbyopia. To provide near vision, an inlay is implanted centrally in the cornea to induce an "effective" zone on the anterior corneal surface, within which diopter power is increased. Distance vision is provided by a region of the cornea peripheral to the "effect" zone. In another embodiment, small diameter inlays are provided that induce effective optical zones on the anterior corneal surface that are much larger in diameter than the inlays. The increase in the effective optical zone, due at least in part to a draping effect, allows an inlay to produce a much larger clinical effect on a patients vision than the diameter of the inlay.
