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International Foundation for Optic Nerve Disease
P. O. Box 777, Cornwall NY 12518, USA

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Phone [g voice]: 6572067250

 
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 ^ Sarcoidosis

Wikipedia

 ^ Schwann Cell Supporting cell of the peripheral nervous system. Forms a myelin sheath around peripheral nerves. Thought to contribute significantly to the ability of peripheral nerves to regenerate after being damaged as opposed to the non regenerating nature of central nervous system nervous tracts including the optic nerve.

Mari Dezawa, Emiko Adachi-Usami. Role of Schwann cells in retinal ganglion cell axon regeneration. Progress in Retinal and Eye Research Volume 19, Issue 2 March 2000 Pages 171-204 PMID 10674707

Ahmed Z, Suggate EL, Brown ER, Dent RG, Armstrong SJ, Barrett LB, Berry M, Logan A. Schwann cell-derived factor-induced modulation of the NgR/p75NTR/EGFR axis disinhibits axon growth through CNS myelin in vivo and in vitro. Brain. 2006 Jun;129(Pt 6):1517-33. Epub 2006 Apr 13. PMID 1661389

Wong EV, David S, Jacob MH, Jay DG. Inactivation of myelin-associated glycoprotein enhances optic nerve regeneration. J Neurosci. 2003 Apr 15;23(8):3112-7. PMID 12716917

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 ^ Sclera

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 ^ Scotoma A gap in the visual field as measured by visual field perimetry within otherwise normal vision. The site of the lesion of the visual pathway determines the shape and location of the scotoma. There are typical shapes of scotomas in optic nerve disease: 1. Centrocecal scotomas, which lie in the centre of vision to the blind spot (cecum), represent lesions of the nerves between the macula and papilla; 2. Arcuate or altitudinal scotomas , lying next to the horizontal midline of the field, represent lesions of the temporal retina above and below the maculopapillary bundle or of the superior or inferior temporal side of the optic nerve; and 3. Radial scotomas which are supero- or infero-temporal defects extending to the blind spot and represent lesions of the nasal retina or optic nerve. 4. Nasal steps are nasal peripheral defects along the nasal horizontal meridian. 5. Generalized depression though not strictly a scotoma is a lower sensitivity over the whole visual field which may be detected with visual field perimetry. Retinal lesions correspond to the visual field defect. For example, macular lesions cause centrocecal defects and retinal degenerative diseases like retinitis pigmentosa usually produce constricted fields and equatorial ring scotomas. Lesions at or beyond the optic chiasm result in scotomas with sharp naso-temporal edges. Scotoma depth is the measure of degree of loss comparing the surround to the area of loss.

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 ^ Serine

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 ^ Serotonin

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 ^ Sildenafil see Viagra

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 ^ Single cell recording

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 ^ Sinus venosus sclerae see Canal of Schlemm

 ^ Slit lamp Optical examining tool for the front part of the eye. Typically uses a slit shaped light source and steadying harness for patient's head.

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 ^ Soma Body of cell or of whole organism. e.g.Referring to the cell body as opposed to the axon in a neuron. Or, in genetics, referring to cells of the body (somatic) as opposed to germ line (reproductive) cells.

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 ^ Stem cell Primordial cell of a tissue or class of cells. Much work is being done on understanding stem cells' transplant potential in treating many diseases including nerve tissue diseases.

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 ^ SPECTSingle photon emission computed tomography

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 ^ Subarachnoid space

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 ^ Superior colliculus

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 ^ Superoxide dismutase

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 ^ Suramin sodium Anti HIV drug known to cause optic nerve damage. See also Zidovudine.

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 ^ Synapse Junction between axon and dendrite where neurotransmitters are released and taken up.

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The International Foundation for Optic Nerve Disease
P. O. Box 777, Cornwall NY 12518, USA.
Phone [g voice]: 6572067250
Email: ifond@aol.com
Web site: http://www.ifond.org/


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