Crested geckos are nocturnal animals and are adapted to see in the dark and in low-light environments. They can't see the same colors as we do but have excellent night vision. ... They've evolved from lizards that were active during the day and had a good vision during the day but, just as humans do, a bad vision at night.

Do crested geckos recognize their owners?

They can recognize their owner's voice and can relate it to a positive experience. Talk in a pleasant tone, or make soothing sounds. Loud noises can frighten your reptile. Yes, Crested geckos can hear pretty well even though it seems like they do not react to sounds.

How does a gecko see?

Most geckos have large bulging eyes–intricately patterned and flecked with metallic hues. And those active after dark have spectacularly sensitive retinas for night vision. To protect these delicate sensors while basking in daylight, most geckos have vertical pupils that close to tiny slits and block damaging rays.