Image result for tapetum lucidum
nubbsgalore: “ an alligator has a tapetum lucidum at the back of each eye, which reflects light back into the photoreceptor cells to make the most of low light, and causes its eyes to glow red. photos...
Tapetum lucidum - Wikipedia Odd-eyed cat with eyeshine, plus red-eye effect in one eye
Eyeshine from the tapetum lucidum of a cat
Tapetum Lucidum Art Print by Laura Racero - $17.68
Tapetum lucidum by kyuubifred.deviantart.com on @DeviantArt