4. 角膜磨損是眼睛最外層(上皮層)的劃傷或破皮,會導致劇烈異物感、畏光、流淚、紅眼及視力模糊。角膜磨損的英文是?(A)Macular degeneration(B)Retinal detachment(C)Cataract(D)Corneal Abrasion