Application of diffractive aspheric multifocal intraocular lens in the Uighur in phacoemulsification

Abstract:

AIM:To research the efficacy and safety of diffractive aspheric multifocal intraocular lens(MIOL)in the Uighur in phacoemulsification to provide guidance for the clinical treatment of cataracts patients in Xinjiang region.

METHODS:Two hundred and twenty-eight Uygur patients(280 eyes)received phacoemulsification from April 2012 to March 2013 were randomly divided into multifocal group(106 cases with 146 eyes)and monofocal group(122 cases with 134 eyes). Patients were followed up for 3mo. The intraocular pressure(IOP), uncorrected distance visual acuity, uncorrected near vision, best-corrected distance visual acuity and best corrected near vision were measured. The delensed rate, visual quality, and satisfaction for lenses in the form of questionnaires were compared.

RESULTS:Multifocal group was better on the uncorrected near vision than monofocal group(P<0.05).The differences on uncorrected distance visual acuity, best corrected distance visual acuity, best corrected near vision between the two groups showed no significant difference(P>0.05). The contrast sensitivity of multifocal group under scotopia at spatial frequency 3c/d was lower than that of monofocal group(P<0.05), those at other spatial frequency had no difference(P>0.05). Delensed rate of multifocal group was higher than that of monofocal group(P<0.05). The satisfaction for lenses had no difference between the two groups(P>0.05).

CONCLUSION:MIOL with phacoemulsification can provide patient good full range vision, especially on good near vision. The patients with MIOL implanted have a higher delensed rate, less postoperative adverse symptoms, quicker recovery and satisfaction.

Key words:lens; multifocal; diffractive; cataract; phacoemulsification