lensflares do exist for humans 
look at the sun or at the moon and cross flares you see everywhere in your room, just look in the dark at a lightbulb and you see that it doesnt only glow, no it has a star like flare on it like here: Diffraction, Aperture, and Starburst Effects its called “Starburst Effect”
and this is the simplest form of a starburst effect which everybody should know too good: http://jaybanks.ca/images/photos/cars-at-night.jpg
