后房型有晶状体眼散光型人工晶状体植入术矫正散光的临床研究

目的研究后房型有晶状体眼散光型人工晶状体（TICL）植入术矫正散光的疗效和安全性。方法对57例（100只眼）近视散光患者行后房型有晶状体眼散光型人工晶状体植入术。术前近视（-4，75～-23．0）D，平均（-11．23±3．92）D。散光（1．25—6．50）D，平均（2．61±0．92）D。随访6—24个月，主要观察手术前后视力、屈光状态、角膜内皮计数、角膜曲率、眼压、前房、人工晶状体柱镜轴位和自身晶状体等情况。结果术后6个月，残余散光（0-2．5）D，平均（0．78±0．67）D，35只跟随访2年，散光度变化在0．5D以内。95％眼裸眼视力（UCVA）和99％眼最佳矫正视力（BCVA）均达到或优于术前BCVA。术后3个月，TICL旋转大于30。占9．09％。3只眼眼压一过性升高，经降眼压治疗，1周内恢复正常。结论TICL可提高患者视觉质量，矫正散光效果准确，可预测性强，并具有良好的旋转稳定性。

Clinical research on astigmatism correction of visian toric implantable collamer lens(TICL)

Objective To study the efficacy and safety of TICL for astigmatism. Methods 57cases （ 100eyes ） of myopia with astigmatism accepted TICL implantation. The range of per-operative myopia diopters was - 4.75 to - 23.0D, mean （ 11.23 ±3.92 ） D. Astigmatism ranges 1.25 to 6.5 D, mean （ 2.61 ± 0.92 ） D. All eyes were followed up for 6 - 24 months. Each eye received TICL implantation per-and post-operative eye examination included UCVA, BCVA, refraction, counting of corneal endothelium, corneal curvature, cylinder axis of the TICL and anterior segment of the eyes. Results Six months after operation,rest astigmatism were （0 - 2.5 ） D,mean（0.78 ± 0.67 ） D. The astigmatism change is within 0.5D in 2 years. The UCVA of 95% eyes and the BCVA of 99% eyes were same or better than the pre-operative BCVA. Three months after operation ,9.09% of the TICL were above 30 degrees of the intended axis. Complications included transient elevation of TICL in 3 eyes. After treatment the intraocular pressure become normal in 1 week. Conclusion TICL allow patients the better UCVA, good rotational stability and predictability in the correction of astigmatism.