AIM: To explore the visual function after micro-incision ultrasonic emulsification combine with aspheric intraocular lens implantation for cataract patient.

METHODS: A total of 50 cases(63 eyes)with age-related cataract were randomly divided into the experimental group(25 cases, 33 eyes)and a control group(25 cases, 30 eyes). Two groups of patients with operation method were same, the experimental group implantation of aspheric intraocular lens, control group with spherical intraocular lens implantation. Uncorrected visual acuity, best corrected visual acuity were compared, and two groups contrast sensitivity and wavefront aberration were checked.

RESULTS:After 1wk, 1 and 3mo, two groups of patients with uncorrected visual acuity was no significant difference(P>0.05). Three months after surgery, there were no significant differences in best corrected visual acuity compared the two groups(P>0.05). In the non-glare and glare condition, the patients in the two groups at 3.0, 6.0, 12.0, 18.0cd frequency contrast sensitivity difference was no significant(P>0.05); In the 1.5cd band, the experimental group contrast sensitivity was significantly higher than that of the control group(P<0.05). Three months after the operation, the experimental group spherical aberration, coma were significantly lower than those in the control group, there were significant differences between these two groups(P<0.05).

CONCLUSION: Aspheric intraocular lens in the low frequency contrast sensitivity is significantly better than the spherical intraocular lens, and can reduce the total aberration in cataract patients, so as to improve the postoperative visual function in cataract patients.