This is a report of a 41-year-old woman who presented with a rare complication of congenitally dislocated lenses. Phacolytic glaucoma was found in one eye followed shortly by an attack of phacolytic glaucoma in the opposite eye. although phacolytic glaucoma is an absolute indication for surgery in these patients, surgery in general for dislocated lenses is still thought to be hazardous especially when dealing with a lens fixata as we did here, which is a lens being fixed in the vitreous with attachments to the retina. The cogenital ectopia lentis was believed to be on a hereditary basis since the father of the patient had worn aphakic lenses all his life without surgery and as none of the many other causes of ectopia lentis could be found.