[Tarsal switch levator for mitochondrial myogenic ptosis].

Purpose: To report the use of tarsal switch levator resection procedures that lift the palpebral fissure to visual axis without causing corneal complications in patients with mitochondrial myogenic ptosis.

Methods: Prospective study. The technique consists of an upper eyelid tarsectomy, with transfer of the autologous tarsoconjunctival graft to the posterior lamella of the lower eyelid.

[Frontalis suspension with polytetrafluorethylene for the treatment of blepharoptosis].

Purpose: To evaluate the functional results and complications of the use of expanded polytetrafluoroethylene in frontalis suspension surgery for the treatment of blepharoptosis.

Methods: Frontalis suspension procedure with polytetrafluoroethylene was performed between 2003 and 2007 on 23 patients (36 eyes) with blepharoptosis. An average follow-up time was 15.

[Eyelid trichoepithelioma--report of 2 cases].

Trichoepithelioma is a benign skin tumor and is most commonly found on the face, however, there are few reports about its occurrence on the eyelids. It is not usually recognized because of its rarity, origin, biological potential, and controversial classification. The purpose of this paper is to report two cases of solitary trichoepithelioma on the eyelid, their histopathology and treatment.