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Chemosis is the swelling (or edema) of the conjunctiva. The term derives from the Greek words cheme and -osis, cheme meaning cockleshell due to the swollen conjunctiva resembling it, and -osis meaning condition. [1] The swelling is due to the oozing of exudate from abnormally permeable capillaries. In general, chemosis is a nonspecific sign of ...
The resulting loose, excess conjunctiva may mechanically irritate the eye and disrupt the tear film and its outflow, leading to dry eye and excess tearing. [2] A correlation may also exist between inflammation in the eye and conjunctivochalasis, though it is unclear whether this correlation is causal.
Subconjunctival bleeding initially appears bright red underneath the transparent bulbar conjunctiva. Later, the bleeding may spread and become green or yellow as the hemoglobin is metabolized. It usually disappears within two weeks. [5] The affected eye may feel dry, rough, or scratchy, but the condition is not usually painful.
Blepharokeratoconjunctivitis is the combination of conjunctivitis with blepharitis and keratitis. It is clinically defined by changes of the lid margin, meibomian gland dysfunction, redness of the eye, conjunctival chemosis and inflammation of the cornea. [34]
Conjunctival suffusion is an eye finding occurring early in leptospirosis, which is caused by Leptospira interrogans. Conjunctival suffusion is characterized by redness of the conjunctiva that resembles conjunctivitis , but it does not involve inflammatory exudates. [ 1 ]
Episcleritis is a benign, self-limiting inflammatory disease affecting part of the eye called the episclera.The episclera is a thin layer of tissue that lies between the conjunctiva and the connective tissue layer that forms the white of the eye ().
The surface of the conjunctival tissue overlying a pinguecula interferes with the normal spreading of the tear film. The tear ferning test reveals abnormalities of the mucous component of the tear film, making it useful as a predictor of a person's tolerance of hydrophilic soft contact lenses. [ 7 ]
Irvine–Gass syndrome, pseudophakic cystoid macular edema or postcataract CME is one of the most common causes of visual loss after cataract surgery. [1] [2] The syndrome is named in honor of S. Rodman Irvine [3] [4] and J. Donald M. Gass.