title: Stability of axis and patient satisfaction after toric implantable collamer lens implantation for myopic astigmatism.
abstract: OBJECTIVE
  To assess the stability of axis and patient satisfaction after toric visian implantable collamer lens (TICL) implantation for moderate to high myopic astigmatism.
  
  
  METHODS
  Total 33 eyes of 21 consecutive patients who underwent implantation of TICL for the correction of moderate to high myopic astigmatism were recorded and a minimum follow-up of six months was performed. The deviation of axis of TICL was detected from one week to six months postoperatively. The evaluation of the visual functions was done by the same clinician at six months after surgery.
  
  
  RESULTS
  The mean refractive cylinder decreased from -2.48±0.91 diopters (D) preoperatively to -0.54±0.25D and -0.50±0.19D at one week and six months after surgery respectively. Mean changes in astigmatism from one week to six months after surgery was 0.03±0.17D. The mean deviation of axis of TICL from one week to six months postoperatively was 2.48±1.25°(range,1°~ 6°) and no TICL required secondary repositioning. 14.3% patients felt difficult about the middle distant visual function (Reading Computer Screen). Evaluations of other visual functions were positive or very positive. Conclusions : Six months after implantation of the TICL, it showed slightly axis rotation and high satisfaction about the visual functions.
authors.affiliation: Tai-xiang Liu, Zhongshan Ophthalmic centre of Sun Yat-Sen University, Guangzhou 510060, China. Department of Ophthalmology, Affiliated Hospital of Zunyi Medical College, Zunyi 563003, China.
authors.forename: Tai-Xiang
authors.initials: TX
authors.lastname: Liu
authors.affiliation: Xin Luo, Department of Ophthalmology, Affiliated Hospital of Zunyi Medical College, Zunyi 563003, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Luo
keywords: Myopic astigmatism; Phakic eyes; Toric implantable collamer lens; Visual functions