Diplopia as an uncommon complication of cataract surgery.

Two patients are presented with diplopia after cataract extraction performed under local anesthesia. Since there was no spontaneous recuperation after several months, strabismus surgery was performed. The first patient presented a restriction of the inferior rectus muscle probably caused by the retrobulbar injection of anesthetics. The second patient had a decompensation of a congenital superior oblique palsy. A survey of the different etiologies of diplopia after cataract surgery is given.

Surgical treatment of myogenic blepharoptosis.

We describe the surgical approach of two patients with myogenic blepharoptosis. The ptosis is caused by a glycogenosis type II (Pompe disease) in the first case and is due to a juvenile, chronic progressive external ophthalmoplegia (Kearns-Sayre syndrome) in the second case. The first patient presented a unilateral ptosis. The ptosis in the second patient was bilateral and manifest. The eyelids could only be opened manually. A resection of the palpebral levator muscle was carried out under local anesthesia. The choice of the technique will be explained. The amount of levator resection was calculated considering the residual eyelid motility and Bell's phenomenon. Electronmicroscopy of the resected levator muscle will be discussed.