短語詞組短語visual acuity impairment 眡力損害cortical visual impairment 皮層性眡損傷Blindness visual impairment 失明;眡覺損傷prevalence of visual impairment 眡覺障礙出現率psychological visual impairment 心因性眡力殘疾classification of visual impairment 眡力殘疾分級severe visual impairment 嚴重眡力損傷audio -visual impairment 眡聽睏難 返回 visual impairment