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halo |
Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson | 0.02 sec. |
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halo /ha·lo/ (ha´lo) 1. a luminous or colored circle, as the colored circle seen around a light in glaucoma. 2. a ring seen around the macula lutea in ophthalmoscopic examinations. 3. the imprint of the ciliary processes on the vitreous body. 4. a metal or plastic band that encircles the head or neck, providing support and stability to an orthosis. Fick's halo a colored circle appearing around a light due to the wearing of contact lenses. halo glaucomato´sus , glaucomatous halo peripapillary atrophy seen in severe or chronic glaucoma. senile halo a zone of variable width around the optic papilla, due to exposure of various elements of the choroid as a result of senile atrophy of the pigmented epithelium.
halo A coloured ring of light seen around a light source as a result of aberrations, internal reflections, diffraction or scattering. It also appears when the eye is diseased and the cornea is oedematous, as in glaucoma. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Other investors include Anthelion Capital, Greylock Partners, Intel Capital, JPMorgan Partners, Panasonic, Presidio Venture Partners, Ridgewood Capital, Telesoft Partners, VentureTech Alliance (an affiliate of Taiwan Semiconductor Manufacturing Company), and Walden International. Other investors include Anthelion Capital, Greylock Partners, Intel Capital, JPMorgan Partners, Panasonic, Presidio Venture Partners, Ridgewood Capital, Telesoft Partners, VentureTech Alliance (an affiliate of Taiwan Semiconductor Manufacturing Company), and Walden International. Circadiant is a privately held company based in Allentown, Pennsylvania, and is funded by leading venture capital firms, including Anthelion Capital, EnerTech Capital, Intel Capital, PA Early Stage and TL Ventures. |
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