Posterior Chamber Phakic Collamer Copolymer IOL Outcomes With at Least 1-Year Follow-up
Narrative Responses:
Purpose
The purpose of this study was to assess the visual and refractive outcomes of the ICL V4C model for myopia and myopic astigmatism correction after 1 year follow up.
Methods
245 eyes of 152 patients underwent implantation of myopic or toric implantable collamer lens (V4C model, STAAR Surgical Inc) for myopia or myopic astigmatism correction. All surgeries in this study were performed by one experienced surgeons (E.M.) using topical and intracameral anesthesia. ICL power calculation was performed using the software provided by the manufacturer. Mean spherical refraction was -5.06±3.64 diopters (D) (range: -18.25 to -0.75 D), and mean cylinder was –1.10±1.19 D (range: -8.00 to -0.75 D). Main outcomes measures evaluated during a year follow-up included: uncorrected visual acuity (UCVA), refraction, best corrected visual acuity (BCVA), vault, intraocular pressure (IOP).
Results
During the surgical procedures, there were no complications. After 1 year the mean Snellen decimal UCVA was 1.13±0.10 and mean BCVA was 1.11±0.09. The mean spherical equivalent dropped from -5.65±3.59 D to -0.01±0.09 D (ranging from -0.25 to 1.00 D). No adverse events were found during the follow-up period (vault and IOP values were maintained stable during the postoperative period). No eye needed explantation and decentration of the ICL optic was not observed, and no case of pupillary block was detected.
Conclusion
The results of the present study reveal the good outcomes of the new implantable collamer lens V4C model for hyperopic, myopic and myopic astigmatism correction.