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Comparison of objective and subjective visual quality early after implantable collamer lens V4C (ICL V4C) and small-incision lenticule extraction (SMILE) for high myopia correction

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First Author: R.Wei CHINA

Co Author(s):    M. Li   X. Zhou                 

Abstract Details

Purpose:

To investigate differences in the objective and subjective visual quality of patients with high myopia following implantable collamer lens V4c (ICL V4c) versus small incision lenticule extraction (SMILE) early postoperatively.

Setting:

Fudan University Eye and ENT Hospital, Shanghai, China

Methods:

This prospective analysis included 94 eyes of 57 patients (8 males) in the ICL V4c group (mean spherical equivalent (SE), -8.07±1.03 dioptres (D)) and 103 eyes of 57 patients (13 males) in the SMILE group (mean SE, -7.85±0.78 D). Refractive parameters and wavefront aberrations were recorded preoperatively and 6 months postoperatively. Subjective visual quality was scored with the Quality of Vision questionnaire, and operation satisfaction was evaluated 6 months postoperatively.

Results:

At 6 months postoperatively, the efficacy index was 1.17±0.16 in the ICL and 1.09±0.20 in the SMILE group; the safety index was 1.21±0.18 in the ICL and 1.12±0.16 in the SMILE group. A significant increase in total higher-order aberrations (HOAs) in both the ICL and SMILE groups was observed but to a lesser degree in ICL (p<0.05). In the ICL group, trefoil significantly increased (p<0.05), whereas in the SMILE group, coma, trefoil, and spherical aberration significantly increased (p<0.05). Glare, haloes, and blurred vision had the highest incidences after both types of surgery, and postoperative haloes were significantly more common following ICL; 96.1% of ICL-treated and 94.9% of SMILE-treated patients were satisfied with their visual outcomes.

Conclusions:

ICL V4c caused lower HOAs induction than SMILE. Despite the postoperative visual disturbances, both ICL and SMILE provided good efficacy, safety, predictability, and high satisfaction in correcting high myopia.

Financial Disclosure:

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