Patent ID: 7135028

Claim:
A blade for corneal surgery for separating a corneal epithelium in a flap shape from a Bowman's membrane, the blade being used by being attached to a corneal surgical apparatus, the blade comprising: an upper blade surface to be positioned at the corneal epithelium side at the time of separation of the corneal epithelium; a lower blade surface to be positioned at the Bowman's membrane side at the time of the separation of the corneal epithelium; and an edge surface connecting the upper and lower blade surfaces, wherein the edge surface has a height of 1 to 70 μm and a connecting portion with each of the upper and lower blade surfaces, the connecting portion having a curved surface with a radius of curvature of 0.5 to 35 μm, so that the blade can incise the corneal epithelium and cannot incise the Bowman's membrane.