单词：near-blind 

形容词

• 
  [1.a.near-blind] (同义词:[dim-sighted(adj.视力差的 )]  [near-blind]  [purblind( adj. 半盲的, 惺松眼的, 迟钝的 vt. 使成半瞎 )]  [sand-blind( adj. 视觉模糊的, 半盲的 )]  [visually_impaired]  [visually_challenged]  )
• 
  注释列句：having greatly reduced vision
• 近义词 -> [blind( adj. 瞎的, 盲目的 vt. 使失明, 缺乏眼光或判断力 )]