It depends on the species. There are more than 1000 species of geckos, and these are divided into two main groups: the first group has fixed eyelids and, like snakes, cannot blink, while the second group has movable eyelids, which means they are able to blink.
Short answer is no,
I am fairly sure that they all do, not 100% on that but i do know that my blue tongue lizards do :D
No, they lick their eyes instead
yes
All geckos, like snakes, have fused eyelids that make them unable to blink. To clean their eyeballs geckos lick them with protrusible notched tongues.
You have to blink or else your eyes will dry out.
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You have to blink when your supposed to blink and when you blink it happens in a jiffy. A jiffy is 1 out of a hundred of a second.
No.
yes
well the cullens dont have to blink, so no, he has no need to
The prehistoric animal is said to have been related to modern day birds but not geckos how ever.
Albino Mack snow geckos are possibly the easiest geckos to have as pets. They are quite docile and rarely, if ever, bite. If they do bite, it does not hurt. They are inexpensive and great starter geckos for children's pets.
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Nope - if they need to 'clean' their eyeballs - they use their tongue to lick the surface. Crested geckos have a clear membrane covering the eye, this membrane is a clear, transparent eye contact more or less. it stops dirt, oxygen, water, substrates etc.. from entering the eye. when something external touches the membrane, they will lick their eye in order to remove anything. The Crested geckos come from the Diplodactylinae subfamily under the Genera Rhacodactylus. Geckos of the Eublepharinae Subfamily are known as "eye lid" geckos all have eye lids. These consist of the: Leopard gecko (E. macularius), the fat tailed gecko (E. Hemitheconyx) etc.. When sleeping, resting, swallowing, and of course blink, their eyelids will close.
That is a personal opinion and therefore can't have a sure answer.