Analysis of visual quality after posterior chamber ICL implantation and FS-LASIK

Abstract

AIM: To compare the visual quality between implantable collamer lens(ICL)implantation and FS-LASIK for correcting moderate and high myopia.METHODS: Prospective study. Choose in June 2018 to December 2018 for ICL implantation of 58 patients(116 eyes)and 48 patients(96 eyes)underwent FS-LASIK. The diopter, visual acuity and visual quality of the two groups before and after surgery were analyzed and compared.RESULTS: After 3mo operation, the degree of spherical mirror in the ICL group was higher than that in the FS-LASIK group(0.19±0.22D vs 0.09±0.29D, PP>0.05). The modulation transfer function cut off frequency(MTF cut off), objective scatter index(OSI)and OV9% were significantly better in the ICL group than in the FS-LASIK group, while the SR was lower than the FS-LASIK group. Compared with the former, the MTF cut off was significantly increased in the ICL group, the SR and OSI values were decreased, and the SR value was decreased in the FS-LASIK group(all PCONCLUSION: Both ICL implantation and FS-LASIK can effectively improve the visual acuity and diopter of patients, ICL implantation for patients with moderate and high myopia provides relatively good visual quality.

Keywords

• implantable collamer lens
• high myopia
• femtosecond
• laser <i>in situ</i> keratomileusis
• double-pass optical quality analysis system
• visual quality