Abstract : The anatomy and physiology of the eye are distinctive, making it a complex organ. The anterior segment and posterior segment are the two primary sections that make up the eye's structure. About one-third of the eye's surface is taken up by the anterior segment, and the rest by the posterior section. The anterior section is made up of tissues such the cornea, conjunctiva, aqueous fluid, iris, ciliary body, and lens. The sclera, choroid, retinal pigment epithelium, neural retina, optic nerve, and vitreous humour are all parts of the posterior segment of the eye (Figure 20.1). Several disorders that compromise eyesight can affect the eye's anterior and posterior segments. Among the illnesses that affect the anterior segment are glaucoma, allergic conjunctivitis, anterior uveitis, and cataract.
Keywords : cornea, conjunctiva, aqueous fluid, iris, ciliary body
