|The upper half of a sagittal section through the front of the eyeball. (Label for 'Conjunctiva' visible at center-left. )|
|Horizontal section of the eyeball. (Conjunctiva labeled at upper left. )|
|Gray's||subject #227 1026|
|Artery||lacrimal artery, anterior ciliary arteries|
The conjunctiva is a clear membrane that covers the sclera (white part of the eye) and lines the inside of the eyelids. The sclera, called the white or white of the eye, is the opaque (usually white though certain animals such as horses and lizards can have black sclera fibrous Eyes are organs that detect Light, and send signals along the Optic nerve to the visual areas of the brain An eyelid is a thin fold of skin that covers and protects an Eye. It is made of lymphoid tissue.
It helps lubricate the eye by producing mucus and tears, although a smaller volume of tears than the lacrimal gland. Eyes are organs that detect Light, and send signals along the Optic nerve to the visual areas of the brain In vertebrates mucus is a slippery secretion produced by and covering Mucous membranes It is a viscous Colloid containing Antiseptic enzymes (such as Tears are the liquid product of a process of lacrimation to clean and lubricate the Eyes The word lacrimation may also be used in a medical or literary sense Tears are the liquid product of a process of lacrimation to clean and lubricate the Eyes The word lacrimation may also be used in a medical or literary sense The lacrimal glands are paired almond-shaped Glands, one for each eye that secrete the aqueous layer of the tear film  It also contributes to immune surveillance and helps to prevent the entrance of microbes into the eye. An immune system is a collection of mechanisms within an Organism that protects against Disease by identifying and killing Pathogens and Tumor A microorganism (also spelled micro organism or micro-organism and also called a microbe) is an Organism that is Microscopic (usually
The conjunctiva is typically divided into three parts:
Disorders of the conjunctiva and cornea are a common source of eye complaints. This is a partial list of human Eye diseases and disorders. The World Health Organization publishes a classification of known diseases and injuries called the The cornea is the transparent front part of the Eye that covers the iris, Pupil, and Anterior chamber.
The surface of the eye is exposed to various external influences and is especially suspectible to trauma, infections, and allergic reactions. Treatment of physical trauma is described here and in First aid. An infection is the detrimental Colonization of a host Organism by a foreign Species. Allergy is a disorder of the Immune system often also referred to as Atopy.
The conjunctiva is best known because of its inflamed state, conjunctivitis (more commonly known as pinkeye). Inflammation ( Latin, inflamatio, to set on fire is the complex biological response of vascular tissues to harmful stimuli such as Pathogens Conjunctivitis (commonly called " Pink Eye " or " Red Eye " in North America and " Madras eye " in India) is an inflammation
Conjunctival irritation is one of the adverse health effects that can take place after overexposure to VOCs (Volatile organic compounds). This article describes a highly specialized aspect of its subject in the "Terminology and legal definitions" section
Sagittal section through the upper eyelid. A pinguecula is a common type of conjunctival degeneration in the Eye. Pterygium refers to any winglike triangular membrane occurring in the Neck, eyes Knees elbows Ankles It is an instrument used in Ophthalmology. It is used to operate on the conjunctival sac.