The short-term efficacy on astigmatism correction of Toric intraocular lens
- VernacularTitle:Toric人工晶状体矫正散光的短期临床疗效
- Author:
Jianxin MA
;
Enkui ZHANG
;
Jun WANG
;
Wenying WANG
- Publication Type:Journal Article
- Keywords:
cataract/surgery;
toric intraocular lens;
astigmatism
- From:
Ophthalmology in China
1994;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate short-term efficacy, predictability, and rotational stability of the Acrysof SN60TT toric intraocular lens (IOL). Design Prospective case series. Participants 25 senile or evolutionary cataract patients (30 eyes) with more than 1.0 diopter (D) of preexisting corneal astigmatism. Methods The type and aim-axis of IOL was calculated using calculator software (date from biometry). The site of incision and aim-axis of IOL was marked before operation. Phacoemulsification was performed, and an Acrysof SN60TT toric IOL was implanted and rotated into the astigmatic axis. All patients were followed up for 3 months. Main Outcome Measures Uncorrected visual acuity (UCVA), best corrected visual acuity(BCVA),refraction, corneal astigmatism, and cylind er axis of the toric IOL. Results After the implantation of the Acrysof SA60TT toric intraocular lens, the UCVAs were 0.73?0.18 (1 month), 0.79?0.17 (3 months). The BCVAs were 0.93?0.13 (1 month), 0.98?0.09 (3 months). The refractive astigmatisms were 0.68?0.53 D (1 month), 0.47?0.39 D (3 months). The surgically induced astigmatism was 0.62?0.32 D. Astigmatism reduced from IOL was 1.27?0.69 D, compared to predicted 1.36?0.44 D (P=0.31). The axis alignment error was 4.0?3.2 degrees. At the final visit, 76.7% of the IOLs were within 5 degrees of the intended axis. Conclusion Implantation of Acrysof SA60TT toric IOL for correction of astigmatism in short-term is effective and stable. This IOL is showed no significant rotation postoperatively with rotational stability in the capsular bag.
