\Blear\, a. [See {Blear}, v.]
1. Dim or sore with water or rheum; -- said of the eyes.
         His blear eyes ran in gutters to his chin. --Dryden.
2. Causing or caused by dimness of sight; dim.
         Power to cheat the eye with blear illusion.
                                               --Milton.

\Blear\, v. t. [imp. & p. p. {Bleared}; p. pr. & vb. n.
{Blearing}.] [OE. bleren; cf. Dan. plire to blink, Sw. plira
to twinkle, wink, LG. plieren; perh. from the same root as E.
blink. See {Blink}, and cf. {Blur}.]
To make somewhat sore or watery, as the eyes; to dim, or
blur, as the sight. Figuratively: To obscure (mental or moral
perception); to blind; to hoodwink.
      That tickling rheums Should ever tease the lungs and
      blear the sight.                         --Cowper.
{To blear the eye of}, to deceive; to impose upon. [Obs.]
   --Chaucer.