Early (< 3 months) intraocular lens (IOL) dislocation occurs due to insufficient fixation
in the capsular bag, while late dislocation (≥ 3 months) is due to increasing insufficiency
of
the zonular apparatus. Iris-fixated IOL (IFIOL) and suture- or sutureless-fixated
scleral IOL (SFIOL) are currently the most commonly used methods when IOL exchange
is indicated. Different
methods of scleral fixation with or without sutures have been described. The most
important techniques are summarised in this paper. IFIOL and SFIOL allow comparable
visual outcomes but
differ in their risk profile. The decision of which method to use should be made case
by case and in accordance with the surgeonʼs preference.
Key words
IOL dislocation - aphakia correction - scleral fixation - iris claw IOL