[Comparative assessment of individualized multifocal intraocular lens implantation]

Abstract

Objective: To evaluate the visual quality after combined implantation of refractive and diffractive multifocal intraocular lens (MIOLs) in both eyes (CustomMatch pattern).

Methods: Prospective, nonrandomized study. Zhongshan Ophthalmic Center, Sun yat-sen university, P.R. China. Age-related cataract patients, selected according to the inclusion criteria and divided into MIOL group and monofocal intraocular lens (SIOL) group, received phacoemulsification and were implanted with combined a ReZoom NXG1 IOL in the dominant eye and a Tecnis ZM900 IOL in the fellow eye or bilateral Sensar AR40e IOLs. Monocular and binocular testing one month after surgery included uncorrected and best-spectacle corrected visual acuity at far, intermediate and near distances under 100 cd/m(2) and 6 cd/m(2), reading visual acuity and reading speed, defocus curve, and subjective vision-related quality of life using questionnaire.

Results: Under 100 cd/m(2) and 6 cd/m(2), binocular mean uncorrected visual acuity at 500 cm in MIOL group was logMAR 0.013 +/- 0.149 and logMAR 0.163 +/- 0.220 and binocular mean best-spectacle corrected visual acuity was logMAR -0.027 +/- 0.092 and logMAR 0.109 +/- 0.175 respectively. The mean refraction spherical equivalent for best distance corrected visual acuity was (-0.18 +/- 0.85) D and (-0.32 +/- 0.90) D respectively. Under 100 cd/m(2), better uncorrected visual acuity (decimal 0.63) at 40 cm, 63 cm and 100 cm was achieved in MIOL group. Under 6 cd/m(2), the uncorrected visual acuities in MIOL group at 40 cm and 63 cm distance were significantly higher than those in SIOL group although there were no statistically difference at 100 cm. Uncorrected reading visual acuity and reading speed in MIOL group were better than those in SIOL group, while the results in reading ability were similar when MIOL group without correction compared with SIOL group with correction. The depth of focus was 5.5 diopter in MIOL group. No patient in both groups wore glasses for distance and 70% patients in MIOL group did not need to wear glasses for intermediate and near distances after surgery.

Conclusion: CustomMatch pattern could provide a satisfactory vision at a full range of near, intermediate and far distance and improve the life quality to a certain extent.