Poon K Y
Hong Kong Government Ophthalmic Service.
Br J Ophthalmol. 1989 Aug;73(8):645-50. doi: 10.1136/bjo.73.8.645.
The limbal ring-rod and the proportional geometric drawing method provide a simple, inexpensive, and fairly accurate measure for the radiological localisation of ocular foreign bodies, and the results simulate those of orbital tomography.
角膜缘环杆和比例几何绘图法为眼部异物的放射学定位提供了一种简单、廉价且相当准确的测量方法,其结果与眼眶断层扫描的结果相似。