Patent ID: 7976155

Claim:
An adapter to be applied in contact with an anterior corneal surface of a cornea of an eye that is to be surgically interacted with by a surgical laser, the adapter comprising: a contact glass portion having a concave corneal contact surface that is shaped to have a corneal contact surface curvature that is flatter than that of the anterior corneal surface that the contact glass portion is intended to be applied to when the anterior corneal surface is in an undeformed state, such that when the contact glass portion is applied to the cornea, the cornea deforms to comply with and assume a deformed state corneal curvature that is parallel to the flatter corneal contact surface curvature; and a mount portion circumferentially surrounding the contact glass portion, the mount portion defining a suction duct at least partially circumferentially surrounding the concave corneal contact surface, the suction duct being structured to secure the adapter to the cornea by negative pressure when the suction duct is brought into contact with a surface of the eye surrounding the contact glass portion and the suction duct being partially defined by a peripheral edge of the mount; the peripheral edge of the mount extending outwardly away from the mount portion and toward but not intersecting or extending beyond a geometric continuation of the corneal contact surface curvature.