Subnormal Vision
《英文msh詞典》Subnormal Vision
[入口詞] Subnormal Vision
[主題詞] Vision,Low
[中文釋義] 次正常視力
[英文釋義] Vision considered to be inferior to normal vision as represented by accepted standards of acuity,field of vision,or motility. Low vision generally refers to visual disorders that are caused by diseases that cannot be corrected by refraction (e.g.,MACULAR DEGENERATION; RETINITIS PIGMENTOSA; DIABETIC RETINOPATHY,etc.).