LASEK (or laser-assisted subepithelial keratomileusis) is a laser vision correction procedure that is similar to both LASIK and PRK. Like LASIK, LASEK can also be used to treat farsightedness, nearsightedness or astigmatism. It is also a type of laser presbyopia surgery when it is used for the treatment of age-related nearsightedness.
Cool Facts About The Large Grey Mongoose. The largest species of Mongoose in Africa, the Large Grey Mongoose, also commonly known as the Egyptian Mongoose, grows to nearly 90cm long with a 40cm long tail.
Mongooses also have receptors for acetylcholine that, like the receptors in snakes, are shaped so it is impossible for snake neurotoxin venom to attach to them. Mongooses are one of four known mammalian species which possess mutations in the nicotinic acetylcholine receptor that protect against snake venom.ongooses range in weight from the common dwarf mongoose, at 320 g (11 oz), to the cat-sized white-tailed mongoose, at 5 kg (11 lb).