| SCD | scleroderma; service-connected disability; sickle-cell disease; spinocerebellar degeneration; subacu... |
|---|---|
| ALSD | Alzheimer-like senile dementia |
| ASD | aldosterone secretion defect; Alzheimer senile dementia; antisiphon device; arthritis syphilitica de... |
| SBD | senile brain disease |
| SD | Sandhoff disease; senile dementia; septal defect; serologically defined; serologically detectable; s... |
| corneal facet | A corneal depression following loss of stroma. (05 Mar 2000) |
|---|---|
| corneal graft | corneal transplant |
| corneal layer of epidermis | The outer layer of the epidermis, consisting of several layers of flat keratinised non-nucleated cells. Synonym: corneal layer of epidermis, horny layer of epidermis. (05 Mar 2000) |
| corneal lens | Contact lens of plastic without scleral portions. (05 Mar 2000) |
| corneal margin | The margin of the cornea overlapped by the sclera. Synonym: limbus corneae, corneal margin, sclerocorneal junction. (05 Mar 2000) |
| corneal neovascularization | New blood vessels originating from the corneal veins and extending from the limbus into the adjacent corneal stroma. These vessels may lie in the superficial and/or deep corneal stroma. Neovascularization is a sequel to numerous inflammatory diseases of the ocular anterior segment, including trachoma, viral interstitial keratitis, microbial keratoconjunctivitis, and the immune response elicited by corneal transplantation. (12 Dec 1998) |
| corneal oedema | An excessive amount of fluid in the cornea due to damage of the epithelium or endothelium causing decreased visual acuity. (12 Dec 1998) |
| corneal opacity | Clouding that can occur in the cornea secondary to inflammation, infection or irritant exposure (foreign body or chemical). Physicians can visualize the corneal for the presence of opacities using the slit lamp (eye scope). (27 Sep 1997) |
| corneal pannus | Fibrovascular connective tissue that proliferates in the anterior layers of the peripheral cornea in inflammatory corneal disease, particularly trachoma in which the pannus involves the superior cornea. Three forms occur: (05 Mar 2000) |
| corneal reflex | A contraction of the eyelids when the cornea is lightly touched with a camel-hair pencil. Synonym: lid reflex. Reflection of light from the surface of the cornea. (05 Mar 2000) |
| corneal space | One of the stellate space's between the lamellae of the cornea, each of which contains a cell or corneal corpuscle. Synonym: lacuna. (05 Mar 2000) |
| corneal spot | A moderately dense opacity of the cornea. Synonym: corneal spot. (05 Mar 2000) |
| corneal staphyloma | A bulging near the anterior pole of the eyeball. Synonym: corneal staphyloma. (05 Mar 2000) |
| corneal stroma | The lamellated connective tissue constituting the thickest layer of the cornea between the bowman and descemet membranes. (12 Dec 1998) |
| corneal topography | Measurement of the anterior surface of the cornea, its curvature and shape. It is used often to diagnose keratoconus and other corneal diseases, and corneal changes after keratotomy and keratoplasty. A significant application is in the fitting of contact lenses. In performing corneal topography, many different techniques can be employed: keratometry, keratoscopy, photokeratoscopy, profile photography, computer-assisted image processing, etc. (12 Dec 1998) |