华西医科大学附一院与国营亚光电工厂共同研制成功YD-Ⅰ型眼内异物定位仪。该仪使用了光电控制系统。当受伤眼处正中位时,能自动拍摄X线片,保证拍片的准确性。它拍摄的侧位片能显示眼睑、角膜、眼眶骨质和玻璃、石块、高分子材料等异物影像,正位 Huaxi Medical University, a hospital attached to the state-owned Asia Optoelectronics Factory jointly developed YD-Ⅰ type intraocular foreign body locator. The instrument uses a photoelectric control system. When the injured eye at the median, can automatically shoot X-ray film to ensure the accuracy of filming. It filming the lateral display of the eyelids, cornea, orbital bone and glass, stones, foreign materials, such as polymer images, is