Out-of-the-Bag Implantation IOL Power

Abstract

In the absence of a safe capsular support, the IOL will be implanted out-of-the-bag. There are different anatomical locations where a posterior chamber IOL can be implanted: sutured to iris, ciliary sulcus supported, or fixated to the sclera with or without sutures. All of them entail a change in the IOL effective power that has to be calculated by the surgeon to avoid a final refractive error. In this chapter, several sources of error are extensively analyzed and the most precise methods to correct them are clearly exposed. Moreover, there are various IOL models designed specifically for out-of-the bag implantation: anterior chamber, iris claw, and scleral fixated. Each of them, with their own clinical and optical features must be mastered in order to achieve an accurate power calculation.