人们在使用眼药水时,总觉得一两滴太少,爱多滴上几滴,认为这样才能充分吸收,起到明显的效果,而且认为眼药水是外用药,多用一些也没什么坏处。其实,眼药水一次1～2滴就够了,多滴不仅吸收不了,而且还可能产生不良反应。一滴眼药水约有30微升,而结膜囊内可贮存的容量平常只有7微升 People use eye drops, always feel that one or two drops too little, love drops a few drops, that in order to fully absorb, play a significant effect, but also that the eye drops are external use, use some no harm. In fact, eye drops once a drop of 2 drops is enough, not only can not absorb more drops, but also may produce adverse reactions. A drop of syrup about 30 microliters, while the conjunctival sac can store the volume is usually only 7 microliters