后房型有晶状体眼散光型人工晶状体矫正散光的临床研究

doi:10.3760/cma.j.issn.1674-845X.2013.06.015

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Abstract

Objective To investigate the clinical effect on the correction of astigmatism with a posterior chamber phakic toric implantable collamer lens （TICL）. Methods This was a prospective case study. Sixty-one patients （113 eyes） with moderate to high myopia who had undergone TICL implantation were evaluated before surgery and at 1， 3， and 6 months and 1 and 2 years after surgery to assess the safety， efficacy， predictability， stability and adverse events of the surgery. A repeated measures ANOVA test and SNK-q test were used to compare data at different time points， including best corrected visual acuity （BCVA）， uncorrected visual acuity （UCVA）， intraocular pressure （IOP） and the density of corneal endothelial cells. Results Preoperative mean BCVA was 4.98±0.12， postoperative mean BCVAs were 5.04±0.08， 5.02±0.09， 5.05±0.10， 5.04±0.09 and 5.03±0.11， respectively， at 1， 3， and 6 months and 1 and 2 years after surgery. There were no significant differences for the BCVAs at the different time points （F=2.090， P>0.05）. Preoperative mean UCVA was 4.03±0.07， postoperative UCVAs were 4.92±0.10， 4.96±0.09， 4.95±0.12， 4.94±0.11， and 4.94±0.08 at different time points. All BCVAs were significantly different compared to BCVA before surgery （F=6.508，P<0.05）. Refractive status remained stable after surgery and astigmatism fell below 0.5 D. The TICL remained stable： 106 eyes （93.8%） had rotation less than 5° and 7 eyes （6.2%） had rotation of 5°~10° when measured at 6 months after surgery. There were no serious complications during or after surgery. Conclusion Implantation of a TICL is safe and effective and provides predictable and stable refractive results in the treatment of astigmatism.

Key words： Posterior chamber Phakic Astigmatism Intraocular lens

Received: 25 July 2012

Corresponding Authors: 乔宝笛

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	QIAO Bao-di
	CHEN Peng
	TIE Biao
	DU Min

Cite this article:

QIAO Bao-di,CHEN Peng,TIE Biao等. Clinical research on the correction of astigmatism with a posterior chamber toric intraocular lens[J]. Chinese Journal of Optometry Ophthalmology and Visual Science, 2013, 15(6): 377-380.

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https://www.cjoovs.com/EN/10.3760/cma.j.issn.1674-845X.2013.06.015 OR https://www.cjoovs.com/EN/Y2013/V15/I6/377

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