EYE OPENER • FREE TRANSLATOR.ORG • Definition of Eye opener

... short drive Michael tried to be cheery, though he had slept little during two nights. "These old streets have really changed very little," he said. "When I was a boy I remember thinking how magnificent they were. What an eye opener it must have been for Alec when he realized that he had given up Paris—for this!" and he waved a deprecating hand toward the unkempt houses, yellow washed and dingy; for the White City, though white when seen from a distance, ...

— A Son of the Immortals • Louis Tracy