The Fasanella-Servat operation: a modified simple technique with quantitative approach.

The Fasanella-Servat operation is much the simplest operation for ptosis and is useful for mild ptosis with good levator function. ' Fasanella and Servat described it as an excision of tarsoconjunctiva along with Muller's muscle and levator palpebrae superioris. However, histopathological examination of the excised tissue has later shown it to contain only tarsoconjunctiva and occasionally Muller's muscle.2 Many modifications to the procedure have been described. They have been aimed at increasing the amount of correction of ptosis, avoiding the central peaking of the lid margin to ensure a proper contour, and preventing corneal abrasions. The purpose of this communication is to present a simple technique with a quantitative approach which avoids the use of a haemostat or special clamp.