Abstract:AIM: To evaluate the corneal astigmatism correction effect and positional stability of AcrySof Toric intraocular lens(IOL)after cataract surgery.
METHODS: Totally 20 patients 23 eyes were implanted with the AcrySof Toric IOL between April 2010 and April 2012. All the patients were followed up for 6 months. The pre and post-operative uncorrected visual acuity(UCVA), preoperative corneal astigmatism, postoperative residual astigmatism, Toric lens axis, Toric lens decentration, Toric lens tilt and the capsule were detected and measured.
RESULTS: After 6 months, UCVA was ≥0.6 in 100% of eyes; ≥0.8 in 69.6% of eyes. The mean preoperative corneal astigmatism was 2.31±0.70D and the postoperative residual astigmatism was 0.45±0.30D, indicating a significant decrease in refractive cylinder after surgery(t=15.045, P=0.000). The mean rotation of Toric IOLs was 5.36°±0.32°. After 6 months, IOL centricity was in 12 eyes(52.2%)in which 8 eyes(34.8%)<0.5mm, 1mm>3 eyes(13.0%)≥ 0.5mm,1 eye(4.3%)>1mm. 20 eyes(87.0%)was untilt while 3 eyes(13.0%)was tilt and less than 5°,
CONCLUSION: Even in different orientation,AcrySof Toric IOL still has good position stability. It is an effective and predicted method for the correct of corneal astigmatism in cataract surgery.