Short-time evaluation on intraocular scattering after implantable collamer lens implantation for correcting high myopia

摘要

BACKGROUND:To compare the intraocular scattering before and after implantation of implantable collamer lens?(ICL) V4c for correction of high myopia in a short term.METHODS:In this study, 38 eyes of 19 patients who underwent the implantation of ICL V4c were followed up for 3 months. Uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA), objective scattering index (OSI), modulation transfer function cutoff frequency (MTF cutoff), strehl ratio (S/R), OV100%, OV20% and OV9% were measured pre- and postoperatively. Meantime, the Pseudophakic Dysphotopsia Questionnaire?(PDQ) was scored to evaluate the subjective satisfaction of intraocular scattering pre- and postoperatively.RESULTS:The UCVA were?-?0.02?±?0.06, -?0.03?±?0.07 and?-?0.04?±?0.07 logMAR at 1?week, 1?month and 3?months postoperatively which were significantly better than those preoperatively (P??0.05). The BCVA were?-?0.09?±?0.09, -?0.09?±?0.1 and?-?0.1?±?0.11 logMAR at 1?week, 1?month and 3?months after surgery, which were better than those before surgery significantly (t?=?15.64, P??0.05). The mean OSI were 2.37?±?1.6, 1.63?±?0.94, 1.5?±?0.86 and 1.43?±?1.05 preoperatively, 1?week, 1?month and 3?months postoperatively which was found significant difference (F?=?12.92 P??0.05). No significant differences were found in MTF cut off (F?=?0.61, P?=?0.62), S/R (F?=?0.58, P?=?0.36), OV100% (F?=?0.966, P?=?0.65), OV20% (F?=?0.121, P?=?0.96) and OV9% (F?=?1.01, P?=?0.30) between pre- and postoperatively. The PDQ results indicated that intraocular scattering reduced at 3?months after surgery significantly (P??0.05).CONCLUSIONS:The ICL V4c implantation for correcting high myopia induced less intraocular scattering and visual disorder than spectacle correction.