Comparison of objective optical quality between SMILE and V4c ICL implantation for correcting high myopia

Abstract

AIM: To compare the objective optical quality of high myopic patients between SMILE and V4c ICL implantation.METHODS: This was a prospective control study. Thirty-eight patients underwent SMILE and thirty-two patients underwent V4c ICL implantation with high myopia were chosen for this study. Uncorrected visual acuity(UCVA), best corrected visual acuity(BCVA)and refractive situation were evaluated preoperatively, at 1wk, 1mo, 3mo and 6mo postoperatively. The objective scattering index(OSI), strehl rate(SR)and modulation transfer function(MTF)cut off frequency were measured by the double-pass optical quality system at the same time.RESULTS: No significant difference of spherical equivalent(SE), UCVA and BCVA was found between SMILE group and V4c ICL implantation group at all time points. At 1wk and 1mo after operation, the OSI values of two groups were significantly higher than pre-operation(PPP>0.05).CONCLUSION: Both SMILE and V4c ICL implantation can obtain good visual acuity and objective optical quality.

Keywords

• femtosecond laser small incision lenticule extraction
• v4c icl implantation
• high myopia
• objective optical quality