Eyelashes and eyelids: The opening and closing movement of the eyes is thanks to the mechanism of the two eyelids, this opening reflex helps the eyes to regulate to avoid drying, infection when exposed to smoke, dust, and water. day. There are also eyelashes on the eyelids that help protect the eyes from foreign objects: the upper lids have long, curved lashes, the lower lids are less and shorter. Sclerosis: is a thick and very hard membrane that surrounds and forms the shape of the eyeball (sphere).
Cornea: located in front of the sclera, has a spheroid shape slightly protruding from the eye socket, acting as a lens, focusing images on the retina, helping us to see objects.
Conjunctiva: The mucous layer covering the sclera (the white) of the eyeball is responsible for maintaining the stability of the tear layer and secreting some substances in the tear against any entry into the cornea.
Iris: Just behind the cornea is a pigment membrane that surrounds the pupil called the iris. The iris has its own characteristics that determine the color of the human eye (brown, blue, black …)
The pupil: the round black hole located in the center of the iris. The pupils can be adjusted to contract or relax by the muscles in the iris that help balance the amount of light entering the eye. These are parts of the outer structure of the eye that can be examined with the naked eye or through simple tools such as flashlights, magnifying glasses.
Seen more at: Buffay Phoebe Oh my eyes my eyes poster
