Hampering the peripheral vision of, as a racehorse

Usage examples of blinkering.

I hit it so hard that I went blind and senseless for a moment, and then in the blinkering light I saw her dead there, sliding off the foot of the bed onto the floor, the blood all over her dress, her pretty lace dress, her lovely white lace dress with its webs and circles of lustrous pearls, her hair fallen from her diamond combs, her face so sweet, no more anger, no more hate.