Comparison of Wavefront Analysis and Visual Function Between Monofocal and Multifocal Aspheric Intraocular Lenses.

Yoon, Jong Uk; Chung, Jae Lim; Hong, Jin Pyo; Ha, Byoung Jin; Kim, Tae im; Kim, Eung Kweon

doi:2009.50.2.195

J Korean Ophthalmol Soc > Volume 50(2); 2009 > Article

Original Article

Journal of the Korean Ophthalmological Society 2009;50(2):195-201.
DOI: https://doi.org/10.3341/jkos.2009.50.2.195 Published online February 15, 2009.

Comparison of Wavefront Analysis and Visual Function Between Monofocal and Multifocal Aspheric Intraocular Lenses.

Jong Uk Yoon, Jae Lim Chung, Jin Pyo Hong, Byoung Jin Ha, Tae im Kim, Eung Kweon Kim

¹The Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea. tikim@yumc.yonsei.ac.kr
²Siloam Eye Hospital, Seoul, Korea.

다초점 비구면 인공수정체의 술 후 시력, 고위수차, 대비감도 및 조절력, 초점심도

윤종억¹ㆍ정재림¹ㆍ홍진표¹ㆍ하병진²ㆍ김태임¹ㆍ김응권¹

The Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine¹, Seoul, Korea / Siloam Eye Hospital², Seoul, Korea

Abstract

PURPOSE
To compare postoperative vision, high-order aberrations, contrast sensitivity, power of accommodation, and depth of focus of monofocal aspheric (TECNIS ZA9003) and multifocal aspheric (TECNIS ZM900) intraocular lenses (IOL). METHODS: Thirty-four eyes which received intraocular lens implantation in the posterior chamber were equally divided into two groups: TECNIS ZA9003 (17 eyes) and TECNIS ZM900 (17 eyes). Before and three months after surgery, visual acuities at near, intermediate, and far distances, and depth of focus were recorded. High order aberrations, spherical aberrations and accommodation power were measured with iTrace, and contrast sensitivity was evaluated using Optec 6500. An independent T-test analysis was used to compare the two groups. RESULTS: There were no significant differences of high order aberrations, spherical aberrations, accommodation power, or distance vision between the two groups at three months postoperatively. The multifocal IOL (TECNIS ZM900) group revealed better intermediate and near vision (p<0.01) and deeper depth of focus, and lower contrast sensitivities (p=0.03) than the monofocal IOL group. CONCLUSIONS: There was no difference in accommodation power between the two groups, but multifocal TECNIS ZM900 IOL exceeds monofocal TECNIS ZA9003 IOL in intermediate and near vision due to diffractive lens design and less spherical aberration by its asphericity.

Key Words: Aspheric;Diffractive;Multifocal;TECNIS