Yes, a great procedure for getting parameters. Note that some earth creatures - deep sea and underground - have almost lost eyes. Like [blind mole rats](https:

Yes, a great procedure for getting parameters. Note that some earth creatures - deep sea and underground - have almost lost eyes. Like [blind mole rats](https://wikipedia.org/wiki/Spalax https://wikipedia.org/wiki/Spalax). They have appropriately alien-like nose-antennae. If there's light, they'll have eyes. Probably.