METHODS: Fifty-eight high myopia patients(116 eyes)who underwent the ICL V4c implantation in our hospital from January 2016 to June 2017 were observed 1wk, 1mo and 1a after operation respectively. Uncorrected visual acuity(UCVA), best corrected visual acuity(BCVA), equivalent spherical mirrors(SE), intraocular pressure(IOP), corneal endothelial cell count, ICL-vault, adverse reaction and complication were investigated.

RESULTS: Postoperative UCVA and BCVA were significantly higher than that in preoperative group(P<0.01). Significant differences were found between postoperative groups except between 1mo and 1a(P>0.05). Postoperative SE at all time points were lower than that in preoperative group(P<0.01). SE at 1mo and 1a after operation were close to 0 diopter. The safety index in 1a postoperative was 1.33±0.67 and the effective index was 1.32±0.69. No significant differences were found in IOP and endothelial cell density after surgery comparing to that in preoperative group(P>0.05). None of subjects developed cataract, glaucoma and decompensation of corneal endothelium. The degree of postoperative satisfaction was 100%.

CONCLUSION: ICL V4c implantation is a safe and effective method for correction of high myopia. The visual acuity stabilized 1mo after operation.