Retinal (also known as retinaldehyde) is a polyene chromophore. Retinal, bound to proteins called opsins, is the chemical basis of visual phototransduction...
33 KB (3,318 words) - 20:15, 11 September 2024
Retina (redirect from Retinal diseases)
the retinal vasculature only 25%. When light strikes 11-cis-retinal (in the disks in the rods and cones), 11-cis-retinal changes to all-trans-retinal which...
84 KB (9,314 words) - 12:31, 23 September 2024
Retinal detachment is a disorder of the eye in which the retina peels away from its underlying layer of support tissue. Initial detachment may be localized...
18 KB (2,305 words) - 09:46, 28 September 2024
Retinal migraine is a retinal disease often accompanied by migraine headache and typically affects only one eye. It is caused by ischaemia or vascular...
7 KB (691 words) - 14:55, 30 August 2024
Retinitis pigmentosa (redirect from Retinal pigmentosa)
pigmentosa (RP) is a member of a group of genetic disorders called Inherited Retinal Dystrophy (IRD) that cause loss of vision. Symptoms include trouble seeing...
63 KB (6,334 words) - 02:32, 19 October 2024
In visual perception, retinal correspondence is the inherent relationship between paired retinal visual cells in the two eyes. Images from one object stimulate...
2 KB (169 words) - 22:02, 14 April 2024
A retinal scan is a biometric technique that uses unique patterns on a person's retina blood vessels. It is not to be confused with other ocular-based...
9 KB (1,132 words) - 05:30, 17 October 2024
Retinal hemorrhage (UK English: retinal haemorrhage) is a disorder of the eye in which bleeding occurs in the retina, the light sensitive tissue, located...
10 KB (1,042 words) - 21:24, 6 September 2024
Lattice degeneration (redirect from Retinal lattice)
medical intervention is neither needed nor recommended. Sometimes other retinal problems (such as tears, breaks, or holes) may be present along with lattice...
5 KB (481 words) - 14:45, 19 July 2024
genetic defects. Retinal dysplasia is characterized by folds or rosettes (round clumps) of the retinal tissue. Most cases of retinal dysplasia in dogs...
3 KB (351 words) - 03:41, 18 August 2024
retinal vein occlusion is a common retinal vascular disease of the elderly. It is caused by the occlusion of one of the branches of central retinal vein...
11 KB (1,296 words) - 04:46, 28 July 2024
Central retinal vein occlusion, also CRVO, is when the central retinal vein becomes occluded, usually through thrombosis. The central retinal vein is...
4 KB (389 words) - 21:24, 6 September 2024
Retinal degeneration may refer to: Retinopathy, one of several eye diseases or eye disorders in humans Retinal degeneration (rhodopsin mutation) Progressive...
326 bytes (69 words) - 04:53, 24 January 2022
Macular degeneration (redirect from Central retinal degeneration)
definitions) is termed nascent GA and/or iRORA (incomplete retinal pigment epithelium and outer retinal atrophy). These 'high-risk' subgroups of intermediate...
92 KB (9,922 words) - 03:48, 19 October 2024
layer of retina or retinal pigment epithelium (RPE) is the pigmented cell layer just outside the neurosensory retina that nourishes retinal visual cells, and...
9 KB (1,181 words) - 23:04, 9 May 2024
A virtual retinal display (VRD), also known as a retinal scan display (RSD) or retinal projector (RP), is a display technology that draws a raster display...
7 KB (819 words) - 05:19, 31 July 2024
Photoreceptor cell (redirect from Retinal elements)
cells in mammalian eyes: rods, cones, and intrinsically photosensitive retinal ganglion cells. The two classic photoreceptor cells are rods and cones...
26 KB (2,939 words) - 03:11, 2 September 2024
A retinal ganglion cell (RGC) is a type of neuron located near the inner surface (the ganglion cell layer) of the retina of the eye. It receives visual...
30 KB (3,628 words) - 03:10, 8 October 2024
Retinal isomerase (EC 5.2.1.3) is an enzyme that catalyzes the isomerisation of all-trans-retinal in the eye into 11-cis-retinal which is the form that...
2 KB (151 words) - 15:41, 26 August 2023
Macular edema (redirect from Retinal edema)
cause. Blockage of a vein in the retina can cause engorgement of the other retinal veins causing them to leak fluid under or into the retina. The blockage...
16 KB (1,554 words) - 03:45, 22 August 2024
Maculopathy (redirect from Doyne honeycomb retinal dystrophy)
progressive sight loss. It is characterised by changes in pigmentation in the Retinal Pigment Epithelium, the appearance of drusen on the retina of the eye and...
2 KB (190 words) - 22:57, 12 January 2024
A retinal implant is a visual prosthesis for restoration of sight to patients blinded by retinal degeneration. The system is meant to partially restore...
28 KB (3,215 words) - 10:31, 12 December 2023
Retinal vasculitis is inflammation of the vascular branches of the retinal artery, caused either by primary ocular disease processes, or as a specific...
5 KB (456 words) - 23:05, 2 February 2023
Retinoblastoma (redirect from Retinal cancer)
within a particular retinal cell. In the sporadic, nonheritable form of retinoblastoma, both mutational events occur within a single retinal cell after fertilization...
43 KB (4,815 words) - 03:11, 19 October 2024
Retinal regeneration refers to the restoration of vision in vertebrates that have suffered retinal lesions or retinal degeneration. The two most well-studied...
11 KB (1,201 words) - 13:29, 3 December 2023
The central retinal artery (retinal artery) branches off the ophthalmic artery, running inferior to the optic nerve within its dural sheath to the eyeball...
5 KB (592 words) - 20:07, 20 July 2024
enzymology, a retinal dehydrogenase, also known as retinaldehyde dehydrogenase (RALDH), catalyzes the chemical reaction converting retinal to retinoic acid...
18 KB (2,129 words) - 05:10, 3 September 2023
Retina bipolar cell (redirect from Retinal bipolar cells)
S2CIDÂ 205429773. Retinal+bipolar+cells at the U.S. National Library of Medicine Medical Subject Headings (MeSH) Diagram at mcgill.ca NIF Search - Retinal Bipolar...
6 KB (742 words) - 06:44, 18 July 2023
photosensitive retinal ganglion cells (ipRGCs), also called photosensitive retinal ganglion cells (pRGC), or melanopsin-containing retinal ganglion cells...
26 KB (3,118 words) - 05:44, 25 July 2024
Progressive retinal atrophy (PRA) is a group of genetic diseases seen in certain breeds of dogs and, more rarely, cats. Similar to retinitis pigmentosa...
12 KB (1,586 words) - 03:34, 26 August 2024