钟点式角膜定位法在角膜异物中的应用

Clinical aplication of localization similar clock of keratopathy on corneal foreign bodies

目的：探讨角膜异物的记录方法。方法：选取2003年7月～2006年11月在我院就诊的角膜异物病人138例（160眼），男112例，女26例；单眼116例，双眼22例。对角膜异物在角膜表面的位置、深度和分布进行研究，在此基础上提出一种较为实用的角膜异物定位法：角膜异物在角膜表面的位置可以用一个或两个钟点数进行记录，根据角膜异物的分布将角膜分为中央区和周边区；角膜异物的深度可以分为Ⅰ、Ⅱ、Ⅲ和Ⅳ度，异物的顶端和尾部的位置可以用相应的一个或两个度数记录，根据深度的分布可以将异物分为A、B、C和D4级。结果：角膜异物累及角膜中央区65眼，周边区95眼，A级94眼、B级33眼、C级15眼、D级18眼。结论：钟点式角膜定位法是一种准确、方便、实用的角膜定位法，可以广泛应用于角膜异物的记录，并可以指导临床。

To investigate the localization of corneal foreign bodies. Methods： One hundred and thirty nine patients with corneal foreign bodies （ 160 eyes） were choosed , included 160 men,26 women ,116 simple eyes,22 double eyes.We studied position,depth and dis-tributing of corneal foreign bodies on corneal surface,and putted forward a comparatively practical localization of corneal foreign bodies： Kinds of position of corneal foreign bodies on corneal surface could be recoided by one or two hours, and cornea could be divided into central region and boider region;the depth of corneal foreign bodies could be divided into Ⅰ、Ⅱ、Ⅲ and Ⅳ degrees,and top and afterbody of corneal foreign bodies could be recorded by one or two degrees,and corneal foreign bodies could be classified into A.B.C and D grades. Refits： Comeal for-eign bodies involved central region 65 eyes,boider region 95 eyes, A 94 eyes,B 33 eyes, C 15 eyes and D 18 eyes. Conclusion： Localization similar clock on corneal foreign bodies was a convenient, precision,applied localization of keratopathy,and could be widely applied on corneal foreign bodies,and we clould used the method to guide chnical practice.