Retina

Retinal detachment may be caused by trauma, advanced diabetes or an inflammatory disorder. But it often occurs spontaneously, as a result of changes in the jelly-like vitreous that fills the vitreous cavity of your eye.
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Retinal vasculitis: The retina is the portion of the eye that contains the nerves of sensation that perceive light. It is also filled with tiny blood vessels.
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Retina
Definition:
The retina is the light-sensitive layer of tissue at the back of the inner eye. It acts like the film in a camera -- images come through the eye's lens and are focused on the retina.
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Retinal artery occlusion
Definition
Retinal artery occlusion refers to the closure of the central retinal artery and usually results in complete loss of vision in one eye.
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Retinal detachment occurs when the two layers of the retina become separated from each other and from the wall of the eye. The retina is a thin nerve membrane that lines the back two-thirds of the eye.
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Retinal detachment may be caused by trauma, the aging process, severe diabetes, or an inflammatory disorder, but it frequently occurs spontaneously.
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The macula is the most critical portion of the retina. It is responsible for detailed vision. This function is necessary for reading and seeing distant objects in detail. When the macula is damaged, vision is affected.
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Retina Service
What is retinoblastoma?
Retinoblastoma is a rare cancer of the retina. The retina is the innermost layer of the eye, located at the back of the eye, that receives light and images necessary for vision.
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RETINAL DETACHMENT: Condition in which a portion of the retina becomes separated from the inner wall of the eye. In AIDS patients, it can result from retinal disease such as CMV retinitis.
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Retinal cell transplantation is another RP treatment that is currently being researched. It involves transplanting healthy retinal cells into the diseased retina. Testing in humans has begun, and the early results are encouraging.
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Retina
See all Pictures & Images Overview, Causes, & Risk Factors ...
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Retinal Diseases
Scleral Diseases - General disorders of the sclera or white of the eye. They may include anatomic, embryologic, degenerative, or pigmentation defects.
Uveal Diseases - Diseases of the uvea.
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retina
The innermost layer of the eyeball. The retina contains the light-sensing rods and cones used for vision.
retinopathy ...
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Retina
The innermost layer of the eyeball. Images focused onto the retina are then sent to the brain.
Ultraviolet radiation (UV) ...
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The retina is the light-sensitive layer at the back of the eye that converts visual images into nerve impulses that are relayed to the brain to produce sight.
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The retina is the nerve tissue that lines the inside of the back of the eye. The retina senses light and sends images to the brain by way of the optic nerve.
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The retina is the nerve layer that lines the back of the eye, senses light and creates impulses that travel through the optic nerve to the brain.
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How's the retina affected?
In these conditions the retina slowly degenerates and gradually loses its ability to transmit images to the brain, resulting in a progressive loss in vision.
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Disease of the retina of the eye that is commonly a complication of diabetes.
Saturated fat/saturated fatty acids ...
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schistosomiasis; ectopic tachycardia; ectopic teratosis; ectopic testis; ectopic thyroid; ectopic ureter; ectoplacental; ectoplacental cavity; ectoplasm; ectoplasmatic; ectoplasmic tube contraction; ectoprocta; ectoprotein kinase; ectopy; ectoretina; ...
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Blindness may be caused by injury, by lesions of the brain or optic nerve, by disease of the cornea or retina, by pathological changes originating in systemic disorders (e.g., diabetes) and by cataract, glaucoma, or retinal detachment.
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ELECTRORETINOGRAPHY - In this test an electrode is placed on the cornea of the eye to measure the electrical response of the rods and cones in the retina. It is useful in the evaluation of hereditary and acquired disorders of the retina.
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In normal vision, light rays converge and focus precisely on the retina, the visual apparatus lining the back of the eyeball. In nearsightedness, the eyeball is too long from front to back, so light rays converge somewhere in front of the retina.
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It is thought that the antioxidants in fruit may help protect macular cells in the retina by mopping up free radical molecules.
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Melanoma A cancer of the pigment-forming cells of the skin or the retina of the eye. Metastasize To spread from the first cancer site, for example, breast cancer that spreads to the bone.
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Wet(exudative)form: In the wet form, newly created abnormal blood vessels grow under the center of the retina. These blood vessels leak, bleed, and scar the retina, distorting vision or destroying central vision.
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2 million nerve fibers in a cable-like structure that connects the retina to the brain. When the nerve fibers are damaged, the nerve impulses to the brain are thwarted and blind spots develop.
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Panoramic 200 nonmydriatic ophthalmoscope Ophthalmoscope for automatic and rapid examination of the retina without the need to dilate or touch the eye; digitally captures over 80% of the retina in less than a half second. Mfg: Optos Inc.
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Complications of tumors, detached retina, iritis, glaucoma, and severe myopia can also bring it on.
Other studies reveal that people with stress, allergies, or who eat seafood (thus ingesting methylmercury) are more likely to develop cataracts.
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A lighted instrument used to examine the inside of the eye, including the retina and the optic nerve.
opioid
A synthetic drug that is used to treat moderate to severe pain. Opioids are similar to opiates such as morphine and codeine.
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Radiofrequency Ablation, Child
Reconstructive Surgery
Retinal Detachment Surgery
Rectal Suction Biopsy, Pediatric
Renal Ultrasound, Pediatric ...
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The tarsal tunnel is bounded by the ankle bone on one side and a band of fibrous tissue, called the flexor retinaculum, on the other. The main nerve serving the foot, the posterior tibial nerve, runs through this tube, or tunnel.
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It is a neurophysiologic phenomenon due to lateral inhibition in the cells of the retina in the back of our eye. In "primitive" species this functions to intensify edge effects and magnify borders.
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