May 5, 2026 · Journal of cataract and refractive surgery · DOI: 10.1097/j.jcrs.0000000000001968

Evaluation of Optimised Implantable Collamer Lens Sizing using an Optical Low-Coherence Reflectometry Biometry Device at 12 months follow up

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The authors aimed to determine whether a more specific white-to-white (WTW) subtraction value of 0.25mm, compared to the standard 0.4mm, could improve the sizing outcomes of Implantable Collamer Lens (ICL) surgery using the LS900 biometry device. Their findings indicated that while ideal sizing occurred in 70% of cases at 3 months, this dropped to 67% at 12 months, with a tendency for lenses to be oversized initially and undersized later. The study suggests that using a 0.25mm subtraction may help reduce the risk of low vaults, which are associated with cataract formation, but further real-world evaluation is needed to confirm these results.

Nikhil Jain, Masara Laginaf, Romesh Angunawela, Ali Mearza, Johnathan Sherlock, Allon Barsam

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