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1.怀疑眼内异物或确诊为眼内异物,首先作A型超声测出眼球直径D;再计算眼球半径R(R=1/2)。2.作眼球正位摄片及侧位摄片。3.消除正位片及侧位片放大率因素。画出1:1的异物眼的正位图及侧位图,分别标出异物所在的位置;眼球中心为0点,作坐标。
1. suspected intraocular foreign body or diagnosed as intraocular foreign body, the first for the A-type ultrasound diameter of the eyeball D; and then calculate the radius of the eye R (R = 1/2). 2. Make eyeballs and lateral radiography. 3. Eliminate the anteroposterior and lateral magnification factor. Draw a 1: 1 foreign body eye anteroposterior and lateral map, respectively, the location of foreign objects marked; eye center is 0, as coordinates.