Preventing scleral erosion after Arruga's cerclage.

To avoid the risk of scleral erosion which may follow Arruga's cerclage for retinal detachment, a modified procedure is presented, in which four pieces of a silicone drain, threaded on the encircling suture, are used to protect the sclera against undue pressure of the suture. Observation of distant operative results indicates that this modification makes it possible to leave the suture in its site for a long, if not indefinite, time.