The eyelids play a vital role in protecting the eye from external injury. They help create a moist environment that ensures the normal function and health of the conjunctiva and cornea. Covered by soft skin, the eyelids have muscles that allow eye opening and closing. The inner eyelids have a mucous membrane or glands that produce mucus for the tears. 

Myopia, or nearsightedness, is a common vision disorder often diagnosed in childhood. The condition affects an individual’s distance vision. Near objects appear clear, while objects at a distance appear blurry.