Source : Webster's Revised Unabridged Dictionary (1913)

Sand-blind \Sand"-blind`\, a. [For sam blind half blind; AS.
   s[=a]m- half (akin to semi-) + blind.]
   Having defective sight; dim-sighted; purblind. --Shak.

Source : WordNet®

sand-blind
     adj : having greatly reduced vision [syn: {dim-sighted}, {near-blind},
            {purblind}, {visually impaired}, {visually challenged}]