Long-Term Observation On Safety And Refractive Outcomes Of Implantable Collamer Lens V4c Implantation For Low-To-Moderate Myopia Correction: A 3-Year Follow-Up

To elucidate the safety and refractive outcomes of implantable collamer lens V4c implantation for correcting low and moderate myopia for at least 3y.

Kunming IWE eye hosptial,Yunnan Province,China

This retrospective study was conducted on 174 patients (315 eyes) who were followed up for at least 3y after ICL V4c implantation. The observation was done before and on 1d, 1w, 1mo, 3mo, 6mo, 1y, 2y and 3y or more after the surgical procedure. The visual acuity, subjective refraction, vault, corneal endothelial cell , atrial angle and adverse events were analyzed.

The average follow-up period was 37.25±3.68mo (range 36–48mo) and the preoperative spherical equivalent (SE) was -4.62±0.93 D. At the last postoperative visit, the spherical equivalent was -0.08±0.48 D and the cylinder was -0.51±0.31 D. The 86.7% of the eyes achieved an uncorrected distance visual acuity of 20/20, 75.6% of the eyes had SE within ±1.0 D at the last visit. The mean vault at the last follow-up was 382.77±154.18 μm. Adverse events occurred in 4 eyes (1.27%), including the toric ICL rotation ( 2 eyes), and ICL displacement ( 2 eye) at the last follow-up.

Long-term ICL V4c implantation is safe, effective, and stable for correcting low and moderate myopia，It is suggested that current ICL implantation is one of the viable surgical options for correcting low and moderate myopia.