Patent ID: 8123803
Filing Date: 2012-02-28
Classification: A61F

Abstract:
1. An ophthalmic device comprising a single limbus ring mountable for periods of longer than one day without causing damage to the eye, and mountable without requiring surgical incision and without restricting blood flow to an extent that is harmful to the eye when maintained for a period longer than one day, in an encircling relation to a central optic zone of a cornea on a limbus annulus surrounding the cornea, the limbus ring having a cross-section having a portion that is curved to correspond with the shape of the limbus and having mounting features that engage the limbus to retain the ring in position on the eye without force external to the limbus ring; the limbus ring defining a first average diameter and wherein the limbus annulus defines a second average diameter, wherein the first average diameter is selectable such that the first average diameter is less than the second average diameter; the limbus ring having an inner radius that is selectable such that, upon mounting on the limbus annulus, the limbus ring causes the limbus annulus to contract thereby causing the curvature of the cornea and the eye length to increase by an amount selected to cause objects in view to be sharply focused on the retina.