Tear device (lat. organa lacrimalia ) consists of the lacrimal glands located in the outer upper part of the orbit (they produce tears), and the drainage channels responsible for the drainage of tears into the nose.Tears produced in the lacrimal glands move towards...

Ray body or ciliary body (lat. corpus ciliare ) is ring-shaped and is located on the inside of the sclera a little behind the iris. It is made up of many blood vessels, muscle and nerve threads. In its front part, it continues to the iris, and a little further back,...

The vitreous body, vitreous (lat. corpus vitreum ) fills the entire interior of the eye behind the lens. Its role is optical, because it is transparent and allows light to pass through, as well as mechanical, i.e. maintaining the constant tension and size of the...

More (Latin palpebrae ) cover the eye from the front and thus protect it. Both the upper and lower eyelids are built almost the same, and consist of several layers. Looking from the outside in, these are the skin, the muscle layer, the connective layer (tarsus) and...