Recurrent Corneal Erosion: Pathogenesis and Therapy

What is a recurrent corneal erosion? The cornea is the clear window in the front of the eye. A corneal erosion is a “scratch of the eye”. It occurs when the cornea’s outermost layer of cells (epithelium) detaches from the “basement membrane” layer beneath it (see picture on the right). Once an area has detached, it may take a long time for it to firmly reattach. This area is weak and can reinjure with even minor trauma to that area.