sand-blind /ˈsæn(d)ˌblaɪnd/
  (a.)視覺糢糊的,半盲的
  Sand-blind a.  Having defective sight; dim-sighted; purblind.
  ◄ ►
  sand-blind
       adj : having greatly reduced vision [syn: dim-sighted, near-blind,
              purblind, visually impaired, visually challenged]