Inflammation of the cornea. SEE ALSO: keratopathy. [kerato- + G. -itis, inflammation]
- deep punctate k. sharply defined opacities in an otherwise clear cornea, occurring in syphilitic iritis.
- dendriform k., dendritic k. a form of herpetic k..
- diffuse deep k. SYN: k. profunda.
- Dimmer k. SYN: k. nummularis.
- disciform k. large disk-shaped infiltration of the central or paracentral corneal stroma. This lesion is deep and nonsuppurative and is seen in virus infections, particularly herpetic. SYN: k. disciformis.
- k. disciformis SYN: disciform k..
- exposure k. inflammation of the cornea resulting from irritation caused by inability to close the eyelids. SYN: lagophthalmic k..
- fascicular k. a phlyctenular k. followed by the formation of a band or fascicle of blood vessel s extending from the margin toward the center.
- filamentary k. a condition characterized by the formation of epithelial filaments of varying size and length on the corneal surface. SYN: k. filamentosa.
- k. filamentosa SYN: filamentary k..
- geographic k. k. with coalescence of superficial lesions in herpes k..
- herpetic k. inflammation of the cornea (or cornea and conjunctiva) due to herpes simplex virus. SYN: herpes corneae, herpetic keratoconjunctivitis.
- lagophthalmic k. SYN: exposure k..
- k. linearis migrans a deep, linear corneal opacity stretching from limbus to limbus; associated with congenital syphilis.
- metaherpetic k. a postinfectious corneal inflammation in herpetic k. leading to epithelial erosion; not due to virus replication.
- mycotic k. an infection of the cornea of the eye caused by a fungus.
- necrotizing k. severe inflammation and destruction of corneal tissue that may be seen in response to herpes infection.
- k. nummularis coin-shaped or round, discrete, grayish areas 0.5 to 1.5 mm in diameter scattered throughout the various layers of the cornea. SYN: Dimmer k..
- phlyctenular k. an inflammation of the corneal conjunctiva with the formation of small red nodules of lymphoid tissue (phlyctenulae) near the corneoscleral limbus. SYN: scrofulous k..
- pneumococcal/suppurative k. SYN: serpiginous k..
- punctate k., k. punctata SYN: keratic precipitates, under precipitate.
- sclerosing k. inflammation of the cornea complicating scleritis; characterized by opacification of the corneal stroma.
- scrofulous k. SYN: phlyctenular k..
- serpiginous k. a severe, creeping, central, suppurative ulcer often due to pneumococci. SYN: pneumococcal/suppurative k., serpent ulcer of cornea.
- k. sicca SYN: keratoconjunctivitis sicca.
- superficial linear k. spontaneous, painful k. with epithelial erosion and folds in Bowman membrane.
- superficial punctate k. epithelial punctate k. associated with viral conjunctivitis. SYN: Thygeson disease.
- vesicular k. k. with coalescence of areas of epithelial corneal edema.

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ker·a·ti·tis .ker-ə-'tīt-əs n, pl -tit·i·des -'tit-ə-.dēz inflammation of the cornea of the eye characterized by burning or smarting, blurring of vision, and sensitiveness to light and caused by infectious or noninfectious agents called also corneitis compare KERATOCONJUNCTIVITIS

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inflammation of the cornea of the eye. The eye waters and is very painful and vision is blurred. It may be due to physical or chemical agents (abrasions, exposure to dust, chemicals, ultraviolet light, etc.) or result from infection. In disciform keratitis a disc-shaped patch of oedema and inflammation develops in the cornea, usually as an immune response to viral infection, commonly herpes simplex virus. Filamentary keratitis is associated with small mucoid deposits of epithelial filaments on the surface of the cornea, which come off to leave small corneal erosions that cause severe pain until they heal. Keratitis not due to infection usually responds to keeping the eyes covered until the corneal surface has healed; infections often require specific drug treatment, e.g. with antibiotics.

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ker·a·ti·tis (ker″ə-tiґtis) pl. keratiґtides [kerat- + -itis] inflammation of the cornea. Cf. keratoconjunctivitis and keratopathy.

Medical dictionary. 2011.

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