Geckos do not have eye lids. They keep their eyes moisturised by licking their own eyeballs. I see no apparent reason why nature decided not.
The large eyes sockets in early mammals used to hold large eyes. The eyes of early mammals were very large and contained a wider pupil and a larger lens.
Another animal that can is the Lowland Anoa. They, like giraffes, pull leaves off bushes using their very long tongues. All these animals can be.
To protect their eyes while basking in the sun, most geckos have vertical pupils that close to tiny slits and block damaging rays. Some species.
The okapi (related to the giraffe) can lick its own eyes. i.imgur.com/B4M1Mt Apparently they can even use those tongues to clean their ears! Wiki. Continue this.