年龄相关性白内障患者术前角膜散光情况分析(1)
摘要：目的 探讨年龄相关性白内障患者术前角膜散光特征。方法 对接受白内障手术的142例(266眼)患者在术前行角膜散光测量，对角膜散光大小和不同轴向散光所占比例进行统计分析，并对不同年龄组的角膜散光和散光轴向进行比较。结果 白内障患者术前角膜散光中位数0.75D，范围(0～3.75)D，0～0.49D占15.0%，0.50～0.99D占39.8%，1.00～1.49D占26.3%，1.50～1.99D占9.8%，2.00D以上占9.0%；顺规散光占24.4%，逆规散光占59.4%，斜向散光占14.7%，无散光占1.5%；角膜散光<1.00D和≥1.00D的眼所占比例在不同年龄组间差异有统计学意义(P<0.05)；顺规散光、逆规散光、斜向散光的眼所占比例在不同年龄组间差异有统计学意义(P<0.05)。结论 年龄相关性白内障患者术前角膜散光≥1.00D者接近一半，随年龄增长比例增加；逆规散光多见，随年龄增长，顺规散光有向逆规散光变化的趋势，在手术切口设计和人工晶体选择上需充分考虑患者角膜散光大小和轴向，以获得满意的术后视觉质量。
, 百拇医药 关键词：年龄相关性白内障；角膜散光；散光轴
Analysis of Preoperative Corneal Astigmatism in Age-related Cataract Patients
LI Rui，DENG Qing，HU Qing-jun，WU Qiu-ju
(Department of Ophthalmology，Civil Aviation General Hospital，Beijing 100123，China)
Abstract：Objective To investigate the age-related cataract patients preoperative corneal astigmatism features.Methods Underwent cataract surgery in 142 cases(266 eyes)of patients in the preoperative corneal astigmatism measurement，statistical analysis of the proportion of the size of the corneal astigmatism and axial astigmatism，and for different age groups of corneal astigmatism and astigmatism were compared.Results The median astigmatism was 0.75D in cataract patients， the range was(0～3.75)D，0～0.49D accounted for 15.0%，0.50～0.99D accounted for 39.8%，1.00～1.49D accounted for 26.3%，1.50～1.99D accounting for 9.8%，2.00D or more accounted for 9.0%；astigmatism accounted for 24.4%，reverse astigmatism accounted for 59.4%，oblique astigmatism accounted for 14.7%，no astigmatism accounted for 1.5%；corneal astigmatism<1.00D and≥1.00D of the proportion of the eye in different age groups were statistically significant(P<0.05)；smooth astigmatism，inverse astigmatism，oblique astigmatism in the proportion of different age groups the difference was statistically significant(P<0.05).Conclusion The patients with age-related cataract before corneal astigmatism was larger than 1.00D in nearly half，with age increasing proportion；against the rule astigmatism more common，with the increase of age，the regular astigmatism has the tendency to reverse the astigmatism，in the surgical incision design and artificial crystal selection need to give full consideration to the patient corneal astigmatism size and axial，in order to obtain satisfactory postoperative visual quality.
Key words：Age-related cataract；Corneal astigmatism；Astigmatism axis
隨着白内障手术的广泛开展和技术设备的日新月异，人们对术后视觉质量的要求越来越高。对于没有眼部其它病变、术前人工晶体度数测量准确、术中未发生并发症的术眼而言，散光成为影响术后裸眼视力的重要原因。年龄相关性白内障患者术前存在的散光主要包括角膜散光和晶状体源性散光。术后晶状体源性散光去除，术前已存在的角膜散光和术后新出现的角膜散光决定了术后眼的散光状态。了解白内障患者术前的角膜散光情况，对于预测患者术后视觉质量、指导手术方式具有重要意义。, http://www.100md.com(李蕊 邓青 胡庆军 吴秋菊)
, 百拇医药 关键词：年龄相关性白内障；角膜散光；散光轴
Analysis of Preoperative Corneal Astigmatism in Age-related Cataract Patients
LI Rui，DENG Qing，HU Qing-jun，WU Qiu-ju
(Department of Ophthalmology，Civil Aviation General Hospital，Beijing 100123，China)
Abstract：Objective To investigate the age-related cataract patients preoperative corneal astigmatism features.Methods Underwent cataract surgery in 142 cases(266 eyes)of patients in the preoperative corneal astigmatism measurement，statistical analysis of the proportion of the size of the corneal astigmatism and axial astigmatism，and for different age groups of corneal astigmatism and astigmatism were compared.Results The median astigmatism was 0.75D in cataract patients， the range was(0～3.75)D，0～0.49D accounted for 15.0%，0.50～0.99D accounted for 39.8%，1.00～1.49D accounted for 26.3%，1.50～1.99D accounting for 9.8%，2.00D or more accounted for 9.0%；astigmatism accounted for 24.4%，reverse astigmatism accounted for 59.4%，oblique astigmatism accounted for 14.7%，no astigmatism accounted for 1.5%；corneal astigmatism<1.00D and≥1.00D of the proportion of the eye in different age groups were statistically significant(P<0.05)；smooth astigmatism，inverse astigmatism，oblique astigmatism in the proportion of different age groups the difference was statistically significant(P<0.05).Conclusion The patients with age-related cataract before corneal astigmatism was larger than 1.00D in nearly half，with age increasing proportion；against the rule astigmatism more common，with the increase of age，the regular astigmatism has the tendency to reverse the astigmatism，in the surgical incision design and artificial crystal selection need to give full consideration to the patient corneal astigmatism size and axial，in order to obtain satisfactory postoperative visual quality.
Key words：Age-related cataract；Corneal astigmatism；Astigmatism axis
隨着白内障手术的广泛开展和技术设备的日新月异，人们对术后视觉质量的要求越来越高。对于没有眼部其它病变、术前人工晶体度数测量准确、术中未发生并发症的术眼而言，散光成为影响术后裸眼视力的重要原因。年龄相关性白内障患者术前存在的散光主要包括角膜散光和晶状体源性散光。术后晶状体源性散光去除，术前已存在的角膜散光和术后新出现的角膜散光决定了术后眼的散光状态。了解白内障患者术前的角膜散光情况，对于预测患者术后视觉质量、指导手术方式具有重要意义。, http://www.100md.com(李蕊 邓青 胡庆军 吴秋菊)
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