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A study of rotational stability of posterior chamber toric phakic intraocular lens implantation for high myopic astigmatism

Session Details

Session Title: Phakic IOLs and keratoconus or high astigmatism

Session Date/Time: Sunday 06/10/2013 | 17:00-18:30

Paper Time: 17:22

Venue: Elicium 1 (First Floor)

First Author: : Z.Jin CHINA

Co Author(s): :    T. Xiaohui              

Abstract Details


To evaluate the rotational stability of toric phakic intraocular lens (Visian ICLTM; STAAR Surgical)implantation for high myopic astigmatism.


Zhou Jin, Tang Xiaohui, Xie Jun Chengdu Aier Eye Hospital, 610041,Tel: 13980660700 No.115 west section 1 ,1st ring road,Chengdu china


This retrospective study evaluated 337 eyes of 202 patients who underwent toric ICL implantation for the correction of high myopic astigmatism in our hospital. The postoperative toric ICL axis was measured with a locating disc under the slit lamp after pupils were dilated, recorded at 1 week, 1 month , 3 months, 6 months and 12 months. We also assessed the safety, efficacy and stability of the surgery in eyes undergoing toric ICL implantation.


The mean postoperative toric ICL axis rotation was 4±4.1 degrees, 3±3.7degrees, 3±2.8 degrees, 3±3.3 degrees and 4±3.2 degrees at 1 week, 1 month, 3 months, 6 months and 12 months, respectively. There was no statistical significant difference of the rotational stability at these time points. The postoperative uncorrected visual acuity at one year and the preoperative best corrected visual acuity (BCVA) were 0.91±0.272 and 0.77±0.563, respectively(t=2.445, P<0.05), the mean postoperative spherical equivalent was -0.04±0.63D and the refractive cylinder was -0.61±0.52D. Overall, the postoperative rotation was within 15 degrees in 100%, within 10 degrees in 94.2% and within 5 degrees in 81.5%


Toric ICL implantation was good in all measures of safety, efficacy and stability for the correction high myopic astigmatism throughout one year. The toric ICL also demonstrated rotational stability both in short-term and mid-long term.

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