blinkers
blink-ers
noun
A metaphorical narrowness of outlook, preventing a broader understanding.
"He has blinkers on regarding new ideas."
noun
Pieces of leather on a horse's bridle to limit its side vision.
"The racehorse wore blinkers to help it focus."
Thesaurus
Synonyms: turn indicator, turn signal, trafficator, blinder, winker, flasher