| RAS | rapid atrial stimulation; recurrent aphthous stomatitis; reflex activating stimulus; reliability, av... |
|---|---|
| REM | rapid eye movement; recent-event memory; reticular erythematous mucinosis; return electrode monitor;... |
| RET | reticular; reticulocyte; retina; retention; retained; right esotropia |
| RF | radial fiber; radio frequency; receptive field; regurgitant fraction; Reitland-Franklin [unit]; rela... |
| RL | radial line; radiation laboratory; reduction level; renal dysplasia-limb defects [syndrome]; resisti... |
| Dimmer's keratitis | Coin-shaped or round, discrete, grayish areas 0.5 to 1.5 mm in diameter scattered throughout the various layers of the cornea. Synonym: Dimmer's keratitis. (05 Mar 2000) |
|---|---|
| disciform keratitis | 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. Synonym: keratitis disciformis. (05 Mar 2000) |
| infectious bovine keratitis | A highly contagious keratoconjunctivitis that occurs in range or pastured cattle during the summer months, is transmitted most commonly by contact with infectious discharges, and is caused by Moraxella bovis. (05 Mar 2000) |
| interstitial keratitis | An inflammation of the corneal stroma, often with neovascularization. (05 Mar 2000) |
| trachomatous keratitis | See: pannus, corneal pannus. (05 Mar 2000) |
| exposure keratitis | Inflammation of the cornea resulting from irritation caused by inability to close the eyelids. Synonym: lagophthalmic keratitis. (05 Mar 2000) |
| keratitis | <ophthalmology> Inflammation of the cornea. Compare: keratoconjunctivitis. (18 Nov 1997) |
| keratitis, dendritic | A form of herpetic keratitis characterised by the formation of small vesicles which break down and coalesce to form recurring dendritic ulcers, characteristically irregular, linear, branching, and ending in knoblike extremities. (12 Dec 1998) |
| keratitis disciformis | 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. Synonym: keratitis disciformis. (05 Mar 2000) |
| keratitis filamentosa | A condition characterised by the formation of epithelial filaments of varying size and length on the corneal surface. Synonym: keratitis filamentosa. (05 Mar 2000) |
| keratitis, herpetic | A superficial, epithelial herpes virus hominis infection of the cornea, characterised by the presence of small vesicles which may break down and coalesce to form dendritic ulcers (keratitis, dendritic). (12 Dec 1998) |
| keratitis linearis migrans | A deep, linear corneal opacity stretching from limbus to limbus; associated with congenital syphilis. (05 Mar 2000) |
| keratitis nummularis | Coin-shaped or round, discrete, grayish areas 0.5 to 1.5 mm in diameter scattered throughout the various layers of the cornea. Synonym: Dimmer's keratitis. (05 Mar 2000) |
| keratitis profunda | An inflammation of the posterior corneal stroma. Synonym: diffuse deep keratitis. (05 Mar 2000) |
| keratitis sicca | Drying and inflammation of the conjunctiva as a result of insufficient lacrimal secretion. When found in association with xerostomia and polyarthritis, it is called sjogren's syndrome. (12 Dec 1998) |