Resarch on change of visual contrast sensitivity in patients with type diabetic retinopathy 2型糖尿病性視網(wǎng)膜病變患者的視覺對比敏感度變化的研究
It is clearly distinguishable from regular black text , while still providing enough visual contrast to be readable 這樣做可以使得顏色的視覺對比度明顯,從而便于區(qū)分超鏈接內(nèi)容和文本內(nèi)容,增加可讀性。