AIM: To compare the visual quality and visual related quality of life in cataract patients after implantation of diffractive aspheric bifocal IOL and single focus aspheric IOL.

METHODS: Retrospective non-randomized study was implemented. In clinical application 110 patients(176 eyes)underwent phacoemulsification combined with IOL from October 2016 to December 2017. In details, 56 cases(82 eyes)with diffractive aspheric bifocal IOL(ZEISS AT LISE 809M)and 54 cases(94 eyes)with single focus aspheric IOL(ZEISS CTA 603P), respectively. Three months after surgeries, the main evaluation indices were successively collected, which included visual, the optical quality analysis system(OQAS)of the MTF cutoff, the Strehl ratio, the OSI, the 100% visual acuity(VA), the 20% VA and the 9% VA, as well as the visual function related quality of life scale(NEI-VFQ-25).

RESULTS: 1)VA: there was no significant difference in the corrected distance visual acuity(CDVA)between the two groups(P>0.05). However, there existed significant difference in the near vision(P<0.05); 2)Objective quality visual analysis(OQAS): there was significant difference in the OSI. Regarding the visual acuity of simulated contrast sensitivity between two groups, the 20% VA and 9% VA expressed significant difference(P<0.01); 3)NEI-VFQ-25 questionnaire: there were no significant differences in overall health, general vision, eye pain, distant vision, peripheral vision, social function, color vision, dependence and mental health between the two groups(P=0.88, 0.08, 0.60, 0.36, 0.80, 0.18, 0.41, 0.07, 0.95). But there was significant difference in near vision and social role limitation between the two groups(P<0.05).

CONCLUSION: The 809M intraocular lenses and the 603P intraocular lenses can improve the optical quality of patients after the surgeries. The former one can provide better near vision, but the OSI was higher than the latter one, which may cause some visual interference. There was no significant difference in visual related quality of life after the surgeries generally.