Archive | 2019
Refractive Corneal Surgery
Abstract
In patients undergoing corneal surgery, topography is useful in preoperative planning, intraoperative modification and postoperative monitoring and problem-solving. Myopia is addressed by corneal flattening, hyperopia by corneal steepening and regular astigmatism by differentially addressing perpendicular meridian. These changes may be achieved by reshaping the anterior corneal surface or by altering the mechanical forces across the whole thickness of the cornea.