Abstract
Purpose :
To observe the efficacy, safety and predictability of implantable collamer lens (ICL) implantation for correction of myopia after excimer laser corneal refractive surgery.
Methods :
Prospective study. Eight patients (12 eyes) with recurrent myopia (refractive regression or under-correction) were selected for ICL implantation. Visual acuity, refraction, intraocular pressure, corneal endothelial count, and vault were collected before and at 1 day, 1 month, 3 months, and 3 years after ICL implantation. The mean follow-up period was 8.17±11.86 m (range, 1 m–7 m).
Results :
Before the operation,the mean UCVA(Uncorrected Visual Acuity) was 4.16±0.35 and mean BCVA（Best Corrected Visual Acuity ）was 4.87±0.14.At 1 month follow-up,the mean UCVA was 4.90±0.21, better than preoperative UCVA（t=-6.230,p＜0.01）,reaching 83.33% (10/12) of preoperative BCVA or better; The safety index was 100.41% and the effective index was 100.21%.The mean arch heights at 1 month follow-up was (441.82±349.34)um. No serious complications were observed.
Conclusions :
The safety, efficacy, and predictability of ICL in the correction of myopia after excimer laser corneal refractive surgery are remarkable. However, its long-term stability needs further observation.
This abstract was presented at the 2019 ARVO Annual Meeting, held in Vancouver, Canada, April 28 - May 2, 2019.