Cyclic esotropia with cyclic blepharoptosis in an adult

Cyclic esotropia is a rare and poorly understood condition normally treated by correcting the deviation measured on the squinting day. We report a 64-year-old woman with previous normal ocular motility, who developed cyclic esotropia in the left eye with concomitant left-sided cyclic blepharoptosis seven years ago. There is no obvious explanation for the findings. She underwent extraocular muscle surgery for esotropia five years ago without subsequent recurrence either in cyclic esotropia or cyclic blepharoptosis.