A biometric study of aniseikonia

Abstract

The intraocular lens is widely accepted today for the correction of aphakia and there is increasing use of intraocular lenses of power calculated to control the refractive outcome for each individual patient. The surgeon is offered the choice of intraocular lens power for postoperative emmetropia, planned ametropia or iseikonia. Some surgeons have stressed the importance of using iseikonia intraocular lens powers although such calculation requires biometric data from both eyes and may leave the patient with significant postoperative anisometropia. In practice, however, most surgeons largely disregard aniseikonia and use intraocular lenses of powers calculated for near-isometropia.