Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comparative Study
. 2013 Jul;39(7):1093-9.
doi: 10.1016/j.jcrs.2013.01.048. Epub 2013 May 18.

Comparison of bifocal and trifocal diffractive and refractive intraocular lenses using an optical bench

Damien Gatinel  1 , Yvette Houbrechts
Affiliations
Comparative Study

Comparison of bifocal and trifocal diffractive and refractive intraocular lenses using an optical bench

Damien Gatinel et al. J Cataract Refract Surg. 2013 Jul.

Abstract

Purpose: To assess the differences in optical performance of 9 multifocal IOLs using the same optical bench and to propose a possible comparison for surgeons.

Setting: Rothschild Foundation, Paris, France.

Design: Experimental study.

Methods: Nine IOLs (Acrysof Restor +3.0 diopter [D] SN6AD1, Acrysof Restor +4.0 D SN60D3, Acrysof aspheric monofocal SN60WF, Acri.Lisa 366D, Finevision Micro F, Tecnis ZM900, and Rezoom, Diffractiva Diff-s, and Lentis Mplus +3.0 D) were tested using the same optical bench that complies with International Organization for Standardization standard 11979 requirements. The through-focus modulation transfer functions (MTFs) were compared, and the image of the United States Air Force (USAF) target was taken while each IOL was at far, intermediate, and near focal points.

Results: The through-focus MTF of the trifocal IOL showed a peak in the intermediate range that was not present with monofocal and bifocal IOLs. The USAF target images showed similar resolution with all IOLs for far focal points. Diffractive IOLs showed better resolution for near focal points, and the only sharp image in the intermediate range was obtained using the trifocal IOL.

Conclusion: There was a significant difference in the degree of near, intermediate, and distance quality of the image with the various types of multifocal IOLs in vitro. Intermediate vision was more prominent with the trifocal IOL.

Financial disclosure: Dr. Gatinel has a proprietary interest in the optical frame used (Patent WO2011092169 [A1] 2011-08-04). Dr. Houbrechts has no financial or proprietary interest in any material or method mentioned.

PubMed Disclaimer

Publication types