Capsular Tension Rings are Associated with Enhanced IOL Positioning

Capsular tension ring (CTR) implantation has been proposed to enhance intraocular lens (IOL) stability, though its effect on IOL position and the clinical indications for its use remain debated. To obtain definitive evidence, a study investigated the impact of CTR implantation on IOL position through a systematic review and meta-analysis of 18 studies involving 809 eyes with CTR and 822 eyes without CTR. The study found that CTR implantation was associated with reduced IOL tilt (mean difference [MD]: -1.04°) and rotation (-0.82°) compared to controls.

CTR use also resulted in a deeper anterior chamber depth in eyes with plate-haptic IOLs (MD: 0.11 mm) and less IOL tilt (MD: -1.43°) in highly myopic eyes. Subgroup analyses indicated heterogeneity based on IOL haptic design. These findings suggest that CTR implantation improves IOL rotational stability and reduces tilt in highly myopic…