Difference between cornea and sclera

First, the cornea and sclera are located in different positions. The cornea is located at the front 1/6 of the eyeball wall and is a transparent fibrous membrane without blood vessels. The sclera is the posterior 5/6 part of the fibrous membrane of the eyeball, connected to the cornea in front and connected to the sheath of the optic nerve in the rear. Second, the two functions are different. The cornea has the functions of protecting the contents of the eyeball, maintaining the shape of the eyeball and refracting. The sclera is tough and has the role of supporting and protecting the tissues in the eye. The common diseases of these two tissues are keratitis, scleritis, etc. It is recommended to develop good eye habits at ordinary times and pay attention to the combination of work and rest.