Sulcus-fixated IOL
Also written as: IOL — Sulcus-fixated Intraocular Lens
Intraocular lens placed in the ciliary sulcus rather than the capsular bag, often due to capsular complications.
Full Definition
A sulcus-fixated IOL is positioned in the ciliary sulcus, the space between the iris and lens capsule, rather than within the capsular bag. This placement is typically chosen when capsular support is inadequate due to zonular dialysis, posterior capsule rupture, or capsular phimosis. The sulcus provides alternative support for IOL fixation, though it requires careful power calculations due to the more anterior position affecting effective lens position. Surgical documentation must specify the reasons for sulcus placement, IOL power adjustments made, and any additional fixation techniques employed to ensure lens stability.
Usage
Usage note: Document power adjustment rationale when placing IOLs in the sulcus versus capsular bag.
In Context
- "Due to extensive posterior capsule rupture, a sulcus-fixated IOL was implanted with reduced power calculation." — Operative complication note
- "The sulcus-fixated IOL was secured with additional suture fixation for enhanced stability." — Complex cataract surgery report