AIM: To compare the visual acuity, contrast sensitivity and visual quality of cataract patients after the implantation of AT LISA tri 839MP multifocal intraocular lenses and CT SPHERIS 209M monofocal intraocular lenses.

METHODS: Fifty-two patients(52 eyes)were involved and divided into two groups in the study. The trail group(26 patients, 26 eyes)received AT LISA tri 839MP multifocal intraocular lens implantation and the control group(26 patients, 26 eyes)received CT SPHERIS 209M monofocal intraocular lens implantation after phacoemulsification. Visual acuity, contrast sensivity at different spatial frequencies(3, 6, 12, 18c/d)in bright and dark circumstances and patient satisfaction questionnaire were monitored at 3mo postoperatively. The postoperative visual acuity included the information of uncorrected distance visual acuity(UCDVA), uncorrected intermediate visual acuity(UCIVA), best corrected distance visual acuity(BCDVA), distance corrected intermediate visual acuity(DCIVA)and distance corrected near visual acuity(DCNVA).

RESULTS: The UCIVA, UCNVA, DCIVA, DCNVA, independent spectacles ratio and satisfaction of the trail group were better than those of the control group 3mo postoper atire(P<0.05). Mean contrast sensitivity at the spatial frequency of 18c/d in dark circumstances of the control group was higher than that of the trail group(P=0.041). The incidence of glare and halo showed no significantly statistical difference between the two groups(P=0.668).

CONCLUSION: AT LISA tri 839MP multifocal intraocular lens provided better intermediate and near visual acuity, independent spectacles ratio and satisfaction compared with CT SPHERIS 209M monofocal intraocular lens.