AIM: To observe the visual quality after segmental Refractive multifocal intraocular lens(IOL)implantation.

METHODS: Totally 50 cases(83 eyes)of cataract patients who receiving phacoemulsification and IOL implantation in our hospital from June 2016 to February 2017 were selected as the study object. Based on the IOL types, the patients were divided into two groups: 22 cases(37 eyes)in observation group implanted segmental refractive multifocal IOL, 28 cases(46 eyes)in control group implanted monofocal IOL. Three months after surgery, the uncorrected visual acuity was recorded. A double-pass optical quality analysis system(OQAS II)was used to evaluate the visual quality. The near spectacle independence, satisfaction, and symptoms of visual disturbance were assessed by a questionnaire.

RESULTS: Three months after surgery, there were no statistical differences in uncorrected distance visual acuity(UCDVA)between the observation group and control group(P=0.273). The uncorrected intermediate visual acuity(UCIVA)and uncorrected near acuity(UCNVA)of observation group was better than control group(P<0.05). There were no statistical differences in MTF cutoff; contrast visual acuity between the groups. The OSI in the observation and control groups was 2.64±0.68 and 1.52±0.47, respectively; objective amplitude of accommodation was(2.91±0.71)D and(1.32±0.41)D, respectively; near spectacle independence was 91% and 7%, respectively. There were statistical differences between the groups(P<0.05). There were no statistical differences between the groups for visual disturbances(glare, ghosting)and satisfaction(P>0.05).

CONCLUSION: Segmental refractive multifocal intraocular lens provides wider objective amplitude of accommodation and good overall visual acuity, reduces spectacle dependency and provides high patient satisfaction.