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眼科传统给药法是用眼药液滴眼,由于眼部有泪液不断分泌和排出,因此药物很快被稀释冲走,在眼部停留时间很短,药效不能充分发挥。二十世纪七十年代开始,有人将药物压成薄膜,包在特制的塑料膜内,放入结膜囊后,可以恒定的速度逐渐释出药物,使眼部长时间保持稳定的浓度。例如目前已投产的毛果芸香硷药膜,放入一片,就可维持降压作用一周,而所用药量只有滴眼法的1/8。可以节约药物,延长作用时间,增加药效,减少副作用,简化治疗手续,因此是很
Ophthalmology traditional administration method is to use eye drops eye drops, tears continue to be secreted and excreted, so the drug quickly diluted away, stay in the eye is very short, efficacy can not give full play. Since the 1970s, some people have pressed the medicine into a thin film, wrapped it in a special plastic film and put it in the conjunctival sac to gradually release the medicine at a constant speed, so that the eye can maintain a steady concentration for a long time. For example, has been put into operation pilocarpine drug film, into a piece, you can maintain a step-down effect, and the dosage is only trickle one-eighth. Can save drugs, extend the role of time, increase efficacy, reduce side effects, simplifying treatment procedures, it is very