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继Riaskoff和Urrets-Zavallia之后,作者等对某些类型的糖尿病性视网膜病变采用特殊的光凝治疗方法。 1.治疗方法:在沿着视乳头和赤道之间所有静脉主干有规则地凝固,按照所推荐使用的氩激光凝固并未发生危险。凝固时间0.2秒,凝固点200,其强度则依据眼底的水肿程度和色素而定,由90mW～250mW,只要达到出现相当的白色标点的强度。凝固点应很靠近静脉边缘,但须注意勿侵犯血管。Urrets-Zavallia则平行地凝固两排,作者等只凝固一排。沿视乳头至赤道部的所有大静脉干每隔5～8天凝固一次,共2次,(每次的凝固点约在300点左右)。只有二支颞侧静脉的后缘不作凝固。
Following Riaskoff and Urrets-Zavallia, the authors used a special photocoagulation therapy for certain types of diabetic retinopathy. 1. Treatment: Regularly solidify all venous trunks along the optic disc and equator. Argon laser coagulation as recommended is not dangerous. Solidification time of 0.2 seconds, the freezing point of 200, the intensity is based on the degree of edema and pigment the eye may be, from 90mW ~ 250mW, as long as the emergence of considerable white punctuation intensity. The freezing point should be very close to the edge of the vein, but care must be taken not to invade the blood vessel. Urrets-Zavallia solidified in parallel in two rows, the author only solidified a row. All major veins along the optic disc to the equator will be solidified once every 5 to 8 days for a total of 2 times (each time the freezing point is about 300 o’clock). Only two posterior marginal temporal veins were not coagulated.