Analysis of early objective visual quality and vision related quality of life after ICL V4c implantation for high myopia

Abstract

AIM: To evaluate the early objective visual quality and vision related quality of life after implantation of posterior chamber phakic implantable collamer lens with a central hole(ICL V4c)for high myopia by applying the double-pass optical quality analysis system Ⅱ(OQAS Ⅱ)and life quality questionnaire.METHODS: Totally 26 patients(44 eyes)with high myopia were enrolled in this research. The patients were all recieved ICL V4c implantation by the same surgeon in our hospital. The evaluation items included uncorrected visual acuity(UCVA), best corrected visual acuity(BCVA), intraocular pressure, corneal endothelial cell density(ECD), vault, objective scattering index(OSI), modulation transfer function cut off frequency(MTF cut off), Strehl ratio(SR), predicted visual acuity values(OV 100%, OV 20%, OV 9%)at contrasts of 100%, 20%and 9% and vision related quality of life questionnaire. All measurements were performed preoperative and 1wk, 1mo, 3mo postoperatively.RESULTS: Compared with preoperative BCVA, for the high myopia patients, the 1wk, 1mo and 3mo UCVA postoperative were better at all time points, and the differences were statistically significant(PPPP=0.790). Compared with preoperative OSI, MTF cut off, SR, OV 100%, OV 20% and OV 9%, the situation improved at postoperative 1wk, 1mo and 3mo, with statistical significance(PCONCLUSION: ICL V4c implantation is safe and effective in correcting high myopia. The objective visual quality and vision related quality of life of patients with high myopia was significantly improved after ICL V4c implantation in the early stage. The research laid a foundation for the establishment of “the comprehensive evaluation system of subjective and objective combination” of ICL in the application of high myopia.

Keywords

• high myopia
• implantable collamer lens
• visual quality
• quality of life questionnaire