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Safety and efficacy of phakic implantable collamer lens implantation via 1.8 mm clear corneal incision for high myopia correction

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Session Details

Session Title: Presented Poster Session: Phakic IOLs II

Session Date/Time: Monday 07/09/2015 | 15:00-16:30

Paper Time: 15:10

Venue: Poster Village: Pod 2

First Author: : Z.Wu CHINA

Co Author(s): :    Z. Wu   X. Xie   Z. Xu   X. Li   Q. Zeng   Y. Liu

Abstract Details

Purpose:

The benefits of smaller clear corneal incision in refractive surgery are evident, such as efficient creation, lack of conjunctival trauma, better self-sealing capability, minimal induction of astigmatism, allowance for rapid visual recovery and nearly immediate stability. Our study aimed to evaluate the safety, feasibility and advantages of phakic toric implantable collamer lens (ICL) implanted in the posterior chamber through a 1.8 mm clear corneal temporal incision for correction of high myopia when compared with a 3.0 mm clear corneal temporal incision.

Setting:

AIER Eye hospital of Wuhan, Wuhan, China

Methods:

A prospective self-control study was conducted. Ninety three patients with high myopia were recruited. Both eyes of each patient underwent ICL v4 implantation, with a 1.8 mm clear corneal incision used in one eye as group A and a 3.0 mm clear corneal incision in the other eye as group B. Uncorrected (UDVA) and corrected distance visual acuity (CDVA) before and after surgery, spherical and cylinder refraction and cylinder axis, intraocular pressure (IOP) and ICL vault height were measured throughout 6 month follow-up and compared between these two groups. Patient questionaires were evaluated for comfort and recovery time.

Results:

No significant difference was observed in the percentage of eyes with an UCVA or BCVA of 0.8 or better between two groups postoperatively. There were no statistical differences in corneal astigmatism and temporal corneal curvature between two groups before surgery, or postoperatively. Surgically induced astigmatism (SIA) at day 1, week 1 and month 1 was significantly less in group A than in group B, but showed no difference at month 3 and 6. There were no significant differences in IOP and corneal endothelial cell density between two groups before surgery, or any time point postoperatively. No complication was observed in either group.

Conclusions:

Implantation of phakic ICL in the posterior chamber produced satisfactory results for both 1.8mm and 3.0 mm clear corneal temporal incision in correcting high myopia. There were no differences in final outcomes between groups, but 1.8 mm incision yielded more satisfactory comfort and lower SIA at earlier stage after surgery. Implantation of ICL via 1.8mm clear corneal incision can correct high myopia safely and effectively.

Financial Interest:

NONE

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