Novel technique of intrascleral IOL fixation with intraoperative adjustment of refraction

Session Details

Session Title: Moderated Poster Session: Refractive Surgery: Can Results Improve Even Further?

Venue: Poster Village: Pod 2

First Author: : Y.Horigome JAPAN

Co Author(s): :    S. Yamane   M. Inamura   H. Arai                 

Abstract Details

Purpose:

The flanged intrascleral intraocular lens (IOL) fixation with double-needle technique which we developed is a simple, minimally invasive technique to fix IOL for eyes without capsular support. In this technique, changing the length of the haptics may change the position of the optic and refraction. The purpose of this study is developing a high precision technique to adjust the refraction by changing the length of haptics during surgery.

Setting:

Inamura eye clinic.

Methods:

28 eyes of 28 consecutive patients with aphakia, dislocated IOL, or subluxated crystalline lens were studied. We used the needle stabilizer to make the angle of the scleral tunnels constant, pulled out the haptics at the maximum or pressed inward at the maximum, and measured intraoperative refraction with wavefront aberrometry (ORATM System). We cut the tip of the haptics at the aimed refraction, then created a flange and anchored it. We checked refractive error from the target at one week and one month postoperatively.

Results:

When the haptics were pulled out at the maximum, the spherical equivalent became myopic, and when pressed inward at the maximum, it became hyperopic. The mean intraoperative refractive change was 0.45±0.33 D. The mean refractive error from target were -0.72±0.71D at the end of the surgery, -0.17±0.66D at one week, and -0.10±0.60D at one month postoperatively.

Conclusions:

The refraction was significantly changed depending on the length of the haptics. Intraoperative adjustment of refraction is possible by cutting haptics during flanged IOL fixation and may minimize postoperative refractive error.

Financial Disclosure:

None