The surface of the eye is exposed to numerous external influences. It is susceptible to many disorders including dryness, allergic reactions, chemical irritation, trauma, and infections. Many systemic illnesses result in irritation to the conjunctiva. Sickle-cell anemia, type II diabetes mellitus, hyp...
The eyes are protected by eyelids and suspended in the orbit by ocular muscles, which are also responsible for eye movements. The eyeball is a multilayered structure: an external fibrous layer for protection, an intermediate vascular layer for nutrition, and an internal layer connected to the ...