Aberration and corneal topography measurement

A method for measuring aberrations introduced by an eye and the topography of a surface of a cornea of the eye, said method comprising the steps of:

• (a) directing a beam into the eye to produce a wavefront exiting the eye along a first path;
• (b) projecting a pattern onto the surface of the cornea of the eye to produce a reflected pattern along said first path;
• (c) differentiating said wavefront and said reflected pattern;
• (d) determining from said wavefront aberrations introduced by the eye;
• and
• (e) determining from said reflected pattern the topography of the surface of the cornea.

An apparatus for measuring aberrations introduced by an eye and the topography of a surface of a cornea of the eye, said apparatus comprising:

• a source for generating a beam capable of producing a wavefront exiting the eye;
• a projector for projecting a pattern onto the cornea of the eye capable of being reflected by the cornea of the eye;
• a combiner/separator for directing said wavefront and said reflected pattern;
• a first imaging device for receiving said wavefront;
• and
• a second imaging device for receiving said reflected pattern.