Posters

Evaluation of the effect of higher-order aberration on visual performance in patients implanted with rotationally asymmetric multifocal intraocular lens

Poster Details

First Author: Y.Wang CHINA

Co Author(s): X. Wang                    

Abstract Details

Purpose:

To compare different ocular aberrations in pseudophakic eye with rotationally asymmetric multifocal intraocular lens (IOL) implantation and determine the visual performance of rotationally asymmetric multifocal IOL by correlating the defocus curve of the IOL-implanted eye with visual acuity and high-order aberrations (HOAs).

Setting:

Multiple factor analysis

Methods:

25 eyes of 19 patients aged between 48 and 76 years (mean: 58.28±7.72 years) underwent cataract surgery with implantation of rotationally asymmetric multifocal IOL. UDVA, CDVA, postoperative manifest refraction and defocus curve were evaluated 3 months postoperatively. Aberrometry was performed by the OPD Scan-III (Nidek, Japan) on the undilated pupil under mesopic conditions at third months after surgery.

Results:

A significant improvement in distance visual acuity was achieved(P<0.01). The root means square (RMS) of HOAs were the total aberration (1.004±0.560), coma aberration (0.311±0.325), trefoil aberration(0.859±0.316), spherical aberration (SA) (0.142±0.442). The defocus curve showed two peaks of the maximum visual acuity (0 and -3.00 D of the defocus), with an acceptable range of intermediated vision. LogMAR visual corresponding to near defocus was directly correlated with some HOAs, trefoil aberration (r=0.572, P<0.05) and spherical aberration (r=0.544, P<0.05).

Conclusions:

The rotationally asymmetric multifocal IOL provides good distance, intermediated and near visual outcomes. Trefoil and spherical aberration had a significant effect on visual function after cataract surgery combined with SBL-3 multifocal IOL implantation, which may limit the potential visual benefit.

Financial Disclosure:

None