AIM: To evaluate the clinical effect and the rotational stability of AcrySof Toric intraocular lens(IOL).

METHODS:Eighty-six eyes of 72 subjects were enrolled from No.474 Hospital of Chinese PLA, Center of Ophthalmology of Chinese PLA. The preoperative corneal astigmatism was more than 1.00 diopter(D)for all eyes.All patients underwent similar phacoemulsification combined with Toric IOLs implantation.The uncorrected visual acuity(UCVA), best-corrected visual acuity(BCVA), preoperative corneal astigmatism, anticipated residual astigmatism, postoperative residual astigmatism and Toric lens axis were detected and measured. The postoperative IOL position was assessed at 1 day, 1 week, 1 month and 3 months using a specially designed angle measuring eyepiece under the slit-lamp.

RESULTS: Three months following surgery, 92% of eyes showed 0.5 or better in UCVA.78% of eyes was 0.8 or better in UCVA and 95% of eyes achieved 0.8 or better in BCVA. The mean preoperative corneal astigmatism was 2.25±0.43D and the postoperative refractive cylinder was 0.42±0.32D, indicating a significant decrease in refractive cylinder after surgery(t=2.880, P<0.01). And there was no statistical significance(t=1.752, P>0.05)with anticipated residual cylinder 0.45±0.39D. The mean rotation of Toric IOLs was 3.15±1.05 degrees after operation 1 week, 3.3±1.5 degrees after 1 month, and 3.55±1.75 degrees after 3 months, there was no significant difference among three groups(F=2.26, P>0.05), and the mean rotation was within 5 degrees in 95.3% of eyes, 100% of eyes rotated less than 10 degrees.

CONCLUSION: The Toric IOL showed good rotational stability and predictability in the correction of corneal astigmatism. Implantation of AcrySof Toric IOL is an effective option for the correcting of preexisting corneal astigmatism in cataract surgery.