Abstract
AbstractAccurate IOL power calculation in eyes undergoing simultaneous cataract surgery and corneal transplantation is not possible. Most difficulties arise as a consequence of the unpredictable changes in the anterior and posterior corneal curvature and in their ratio. The keratometry values should ideally be taken from individual case series done with a similar surgical technique (similar corneal graft type; surgical and suturing technique; donor-host cornea size disparity) and always aiming for a mild residual myopia. In endothelial transplants, a myopic refraction of at least -0.75 D should be targeted, due to the expected postoperative hyperopic shift.Residual refractive errors can be well managed by means of glasses/contact lenses or laser refractive surgery (such as PRK + Mitomycin C or LASIK) and in extreme cases, by means of IOL exchange or piggyback IOL implantation using the refractive vergence formula or raytracing.
Publisher
Springer International Publishing