| retinol isomerase | <enzyme> Catalyses the isomerization of all trans-retinol to 11-cis-retinol in the dark; found in the pigment epithelium in the eye Registry number: EC 5.2.1.7 Synonym: retinoid isomerase (26 Jun 1999) |
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| retinol-binding protein | <molecular biology> Proteins which bind with retinol. The retinol-binding protein found in plasma has an alpha-1 mobility on electrophoresis and a molecular weight of 21,000-22,000. The protein has one binding site for retinol and is responsible for the transport of vitamin A. The retinol- protein complex (molecular weight 80,000 to 90,000) circulates in plasma in the form of a protein-protein complex with prealbumin. The retinol-binding protein found in tissue has a molecular weight of 14,000 and carries retinol as a non-covalently-bound ligand. (03 Jul 1999) |
| retinopapillitis | Inflammation of the retina extending to the optic disk. (05 Mar 2000) |
| retinopapillitis of premature infants | <ophthalmology, paediatrics> A bilateral retinopathy occurring in premature infants treated with excessively high concentrations of oxygen, characterised by vascular dilatation, proliferation, and tortuosity, oedema, and retinal detachment, with ultimate conversion of the retina into a fibrous mass that can be seen as a dense retrolental membrane. Usually growth of the eye is arrested and may result in microophthalmia, and blindness may occur. (03 Jul 1999) |
| retinopathy | 1. <ophthalmology> Retinitis: inflammation of the retina. 2. <disease> Retinosis: degenerative, noninflammatory condition of the retina. Origin: Gr. Pathos = disease (18 Nov 1997) |
| retinopathy of prematurity | <ophthalmology, paediatrics> A bilateral retinopathy occurring in premature infants treated with excessively high concentrations of oxygen, characterised by vascular dilatation, proliferation, and tortuosity, oedema, and retinal detachment, with ultimate conversion of the retina into a fibrous mass that can be seen as a dense retrolental membrane. Usually growth of the eye is arrested and may result in microophthalmia, and blindness may occur. (03 Jul 1999) |
| retinopathy punctata albescens | A disease in which both fundi show numerous white dots through the retina; causes night blindness. (05 Mar 2000) |
| retinopexy | A procedure to repair a detached retina by holding it in place; e.g., by producing chorioretinal adhesions by freezing ("retinal cryopexy"). Origin: retino-+ G. Pexis, fixation (05 Mar 2000) |
| retinophora | <zoology> One of group of two to four united cells which occupy the axial part of the ocelli, or ommatidia, of the eyes of invertebrates, and contain the terminal nerve fibrillae. Source: Websters Dictionary (01 Mar 1998) |
| retinophoral | <zoology> Of or pertaining to retinophorae. Source: Websters Dictionary (01 Mar 1998) |
| retinopiesis | Repositioning a detached retina by pressing it into position by gas or fluid. See: retinopexy. Origin: retino-+ G. Piesis, pressure (05 Mar 2000) |
| retinoschisis | Degenerative splitting of the retina, with cyst formation between the two layers. Origin: retino-+ G. Schisis, division (05 Mar 2000) |
| retinoscope | <instrument> An optical device used to illuminate a subject's retina during retinoscopy. Origin: retino-+ G. Skopeo, to view (05 Mar 2000) |
| retinoscopy | <physiology> The study of the retina of the eye by means of the ophthalmoscope. Origin: Retina + -scopy. Source: Websters Dictionary (01 Mar 1998) |
| retinotomy | A surgical incision through the retina. (05 Mar 2000) |