red-eye
noun
• the undesirable effect in flash photography of people appearing to have red eyes, caused by a reflection from the retina when the flashgun is too near the camera lens.
• "a pre-flash emission to minimize red-eye"
• a flight on which a passenger cannot expect to get much sleep on account of the time of departure or arrival.
• "she caught the red-eye back to New York"
• a freshwater fish with red eyes, in particular a rudd or a rock bass.
• cheap whisky.
