Patent ID: 9486362
Filing Date: 2016-11-08
CPC Classification: A61F,A61P,G02C

Claim Text:
1. A device to be worn on a scleral surface, wherein the device is made of a curved thin film having a ring shape, and the device has an opening to expose a cornea, wherein one surface of the curved thin film forms a concave surface and another surface of the curved thin film forms a convex surface, and the concave surface and the convex surface have different curvatures, wherein the curved thin film has an intermediate portion between an inner edge portion and an outer edge portion, wherein the intermediate portion has a minimum thickness and a maximum thickness, and wherein the inner edge portion has a thickness within the range of 0.05-0.3 mm, the outer edge portion has a thickness within the range of 0.05-0.3 mm, the intermediate portion has a thickness within the range of 0.08-0.4 mm, the minimum thickness of the intermediate portion is not less than the thickness of the inner edge portion and is not less than the thickness of the outer edge portion, and the maximum thickness of the intermediate portion is greater by 0.03 mm or more than both the thickness of the inner edge portion and the thickness of the outer edge portion.