AIM: To evaluate the clinical effect and the rotational stability of AcrySof Toric intraocular lens(IOL)implantation to correct preexisting corneal astigmatism in cataract surgery.

METHODS: Twenty-three patients(28 eyes)were enrolled from the department of ophthalmology in the first Affiliated Hospital of Nanjing Medical University. All patients underwent similar phacoemulsification procedure combined with AcrySof Toric IOL implantation from June 2012 to December 2013. The uncorrected visual acuity(UCVA), best corrected visual acuity(BCVA), anticipated residual astigmatism, postoperative residual astigmatism, and Toric IOL axis were detected and measured.

RESULTS: Three months after operation, the UCVA of all eyes were 0.75±0.16 and the BCVA were 0.84±0.15, there was no significant difference between UCVA and BCVA(t=1.036, P>0.05). The anticipated residual astigmatism was(0.28±0.12)D. The actual residual astigmatism after 3mo of the operation was(0.42±0.17)D. There was no significant difference between anticipated and actual residual astigmatism(t=1.259, P>0.05). The mean axis rotation of Toric IOL was 3.02°±1.56°(0°-7°)after 1d of operation and 3.28°±1.85°(0°-7°)after 3mo. Among all the eyes, 25 eyes(89%)rotated <5°, in 3 eyes(11%)rotated 5°-7°.

CONCLUSION:The AcrySof Toric IOL implantation shows good effectiveness, predictability and stability in correcting pre-existing astigmatism in cataract patients.