Aviator eyeglasses are a style of glasses that got their start as sunglasses for military pilots. But their distinctive look became popular among the general public, and now they’re available to anyone—not just as sunglasses, but prescription eyeglasses, too. 
The traditional shape of aviator glasses frames has recognizable features, like a double bridge and tear-drop-shaped eye rims. But these days, there are plenty of modern spins on the aviator style to choose from, like single brow bars, semi-rimless frames, or different shaped lenses, for example.