Corneal vascularization.

CATARACT extraction, after the zonule has been dissolved by the action of the enzyme alpha-chymotrypsin, is a new procedure of great potential value. The parenteral use of this enzyme to reduce inflammatory reaction and assist the absorption of haematomata has been described (Fullgrabe, 1957). The application to cataract surgery is the result of work by Barraquer on the local effects of the enzyme injected into the eye. Several published papers (Barraquer, 1958a; Remky, 1958; Walser, 1958) indicate good results from extensive clinical trials; no specific post-operative complications are recorded. This case is presented because of the practical and theoretical interest of the complication encountered.