AIM: To observe visual acuity, refractive outcomes and rotational stability after phacoemulsification combined Acrysof Toric intraocular lens(IOL)implantation for treating cataract and preexisting astigmatism.

METHODS: Totally 59 patients(83 eyes)with ≥0.75 diopter(D)of preexisting corneal astigmatism were divided into 2 groups: one group 39 patients(53 eyes)with Toric IOL implantation and the other group 20 patients(30 eyes)with non-Toric IOL. All patients were operated with phacoemulsification and IOL implantation. We examined uncorrected visual acuity(UCVA), refractive outcomes, IOL axis shift, contrast sensitivity and wavefront aberration of Toric IOL group at 1 week, 1 month, 3 months after surgery. And we contrasted UCVA, refractive outcomes, contrast sensitivity and wavefront aberration of Toric IOL group with non-Toric IOL group at 3 months postoperatively.

RESULTS:(1)Visual acuity: The rate of achieving ≥1.0 in Toric IOL group was larger than non-Toric IOL group postoperatively.(2)Corneal astigmatism: The mean corneal astigmatism before surgery was similar with the one postoperatively in Toric IOL group.(3)Toric IOL stability: At 3 months postoperatively, the axis of IOL shift to 1-4 degree was in 22% of the eyes.(4)Contrast sensitivity(CS): The CS with different spatial frequency of all of eyes was raised significantly in Toric IOL group, and was higher than the CS of non-Toric IOL group.(5)Wavefront aberration: The mean C12, C7, C8, RMSh of post-operation were significantly lower than those of pre-operation in Toric IOL group, and C7,C8, RMSh were both lower than non-Toric IOL group.C12 of Toric IOL group were similar with non-Toric IOL group.

CONCLUSION: Toric IOL implantation showed good visual and refractive outcomes for correcting regular corneal astigmatism.