Contact lenses are also called contact lenses. Indications for contact lenses are:
(1) Corrected vision: including myopia (especially high myopia), hyperopia, astigmatism (especially irregular astigmatism), anisometropia (especially binocular refractive difference greater than 2.00D), aphakia after cataract surgery and keratoconus.
(2) Beauty: People who cover corneal leukoplakia, change eye color and pay attention to facial beauty (mostly young people) need social activities.
(3) Convenience: athletes and actors. Chefs, pilots, hotels, restaurants and other people who need to work or travel, as well as people who are allergic to frames.
4) Treatment: corneal perforation and postoperative dry eye can be treated or lens can be used as a route of administration (such as sustained-release atropine, pilocarpine, antibiotics and other nutrient solutions).
Contact lenses are generally divided into soft and hard. It should be noted that those who wear soft contact lenses for a long time, suffer from hypoxia, eye congestion or cause new blood vessels, dry eyes and poor vision correction can replace hard contact lenses after eye recovery.