Pankratov M M, Pomerantzeff O, Pflibsen K P, Bearse G R
Ophthalmic Surg. 1987 Jan;18(1):61-5.
A step-zoom probe for laser endophotocoagulation of the eye has been developed, using fiber optics and a gradient index (GRIN) rod lens. It provides the operator with five or more focused spots ranging in size from 50 to 500 microns, and the spot size on the target is independent of the media filling the vitreous cavity, i.e., fluid or air. Each spot is located at the waist of the beam and therefore can be easily placed on the target, reducing the potential for overtreatment. A prototype model is currently undergoing animal testing.
一种用于眼部激光光凝术的步进变焦探头已被研制出来，它采用了光纤和梯度折射率（GRIN）棒透镜。它为操作人员提供了五个或更多聚焦光斑，光斑大小从50微米到500微米不等，并且目标上的光斑大小与填充玻璃体腔的介质无关，即与液体或空气无关。每个光斑位于光束的束腰处，因此可以很容易地放置在目标上，降低了过度治疗的可能性。一个原型模型目前正在进行动物试验。
