| PAT | Pain Apperception Test; paroxysmal atrial tachycardia; patient; phenylaminotetrazole; physical abili... |
|---|---|
| TR | recovery time; rectal temperature; repetition time; residual tuberculin; terminal repeat; tetrazoliu... |
| TRU | task-related unit; turbidity-reducing unit |
| TT | tablet triturate; tactile tension; tendon transfer; test tube; testicular torsion; tetanus toxin; te... |
| TTT | thymol turbidity test; tolbutamide tolerance test; total twitch time; tuberculin tine test |
| cornea | <anatomy, ophthalmology> The transparent structure forming the anterior part of the fibrous tunic of the eye. It consists of five layers: 1. The anterior corneal epithelium, continuous with that of the conjunctiva. 2. The anterior limiting layer (Bowman's membrane). 3. The substantia propria or stroma. 4. The posterior limiting layer (Descemet's membrane). 5. The endothelium of the anterior chamber. Synonym: keratoderma. Origin: L. Corneus = horny (18 Nov 1997) |
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| cornea farinata | Bilateral speckling of the posterior part of the corneal stroma. Synonym: floury cornea. (05 Mar 2000) |
| cornea urica | Bilateral deposition of crystalline deposits of urea and sodium urate within corneal stroma. (05 Mar 2000) |
| cornea verticillata | Congenital whorl-like opacities in the cornea. Synonym: Fleischer's vortex. (05 Mar 2000) |
| posterior limiting layer of cornea | A transparent homogeneous acellular layer between the substantia propria and the endothelial layer of the cornea; considered to be a highly developed basement membrane. Synonym: lamina limitans posterior corneae, membrana vitrea, Descemet's membrane, Duddell's membrane, entocornea, hyaloid membrane, lamina elastica posterior, limiting layers of cornea, membrana hyaloidea, posterior elastic layer, tunica vitrea, vitreous membrane. (05 Mar 2000) |
| posterior surface of cornea | The posterior surface of the cornea. Synonym: facies posterior corneae. (05 Mar 2000) |
| serpent ulcer of cornea | A severe, creeping, central, suppurative ulcer often due to pneumococci. Synonym: pneumococcal/suppurative keratitis, serpent ulcer of cornea. (05 Mar 2000) |
| substantia propria of cornea | Proper substance of cornea, modified transparent connective tissue, between the layers of which are open spaces or lacunae nearly filled with the corneal cells or corpuscles. Synonym: substantia propria corneae. (05 Mar 2000) |
| ichthyosis sebacea cornea | A type of ichthyosis with vernix caseosa as seen in the newborn. (05 Mar 2000) |
| ectatic marginal degeneration of cornea | Bilateral opacification and vascularization of the periphery of the cornea, progressing to formation of a gutter and ectasia. Synonym: ectatic marginal degeneration of cornea. (05 Mar 2000) |
| elastic layers of cornea | See: anterior limiting layer of cornea, posterior limiting layer of cornea. (05 Mar 2000) |
| endothelial dystrophy of cornea | Spontaneous loss of corneal endothelium leading to oedema of the corneal stroma and epithelium. (05 Mar 2000) |
| transparent ulcer of the cornea | An obsolete term for an ulcer of the cornea, occurring usually in children, that heals without opacity. (05 Mar 2000) |
| transplantation of cornea | corneal transplant |
| fleck dystrophy of cornea | A bilateral occurrence of subtle spots in the corneal stroma; the spots vary in size and shape, and have sharp margins and clear centres; photophobia may occur; autosomal dominant inheritance. (05 Mar 2000) |