Muscular reinforcement in convergent strabismus

Abstract

Between 1966 and 1970, forty-one cases of unilateral convergent strabismus and three cases of divergent strabismus were operated upon by the technique suggested by Malbran. Most of the cases had shown a severe degree of amblyopia and weakness of the External Rectus. In this technique, the muscle is twisted around its longitudinal axis the required amount of turns according to the degree of deviation, and attached again to its original insertion. There is no cutting of the muscle tendon. The results were very satisfactory, showing a marked strengthening of the action of the External Rectus. It is suggested that in order to obtain reinforcement of an ocular muscle, resection should be replaced by a screw-like twisting of the muscle.