Adjusting Intraocular Lens Power for Placement in the Ciliary Sulcus

Abstract

Cataract surgery is the most commonly performed procedure within the National Health Service (1). In most cases, the intended post-operative visual outcome is emmetropia, which is significantly influenced by the intraocular lens (IOL) power calculated and selected by the surgeon (2). The capsular bag is the preferred position for IOL implantation due to its stability and proximity to the position of the native lens (3). The most common intraoperative complication of cataract surgery is posterior capsular (PC) rupture (1). This is one instance in which placement of the IOL in the ciliary sulcus, rather than the capsular bag, may be necessary, in addition to other situations such as cases of zonular laxity (3). The Royal College of Ophthalmologists state in their cataract guidance that back-up lenses should be available in theatre in case non-capsular bag fixation is required (4).