A surgical apparatus for use in assisting the performance of a procedure on an eye, the eye having a front and rear, a cornea, an iris defining a pupil, and a lens capsule behind the iris. The apparatus has a frame with a front and rear, a first portion and a second portion. The first frame portion has at least one iris engagement portion for being operatively connected to the iris to exert a pressure upon the iris that maintains the pupil in an enlarged state. The second frame portion has a curved edge configured to guide movement of an instrument in a curved path with the first frame portion operatively connected to an iris.
