photocoagulation
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Related to photocoagulation: Panretinal Photocoagulation
photocoagulation
[fo″to-ko-ag″u-la´shun]condensation of protein material by the controlled use of an intense beam of light (e.g., argon laser); used especially in the treatment of retinal detachment and destruction of abnormal retinal vessels or intraocular tumor masses.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
pho·to·co·ag·u·la·tion
(fō'tō-kō-ag'yū-lā'shŭn),A method by which a beam of electromagnetic energy is directed to a desired tissue under visual control; localized coagulation results from absorption of light energy and its conversion to heat or conversion of tissue to plasma (atoms stripped of electrons).
[photo- + L. coagulo, pp. -atus, to curdle]
Farlex Partner Medical Dictionary © Farlex 2012
photocoagulation
(fō′tō-kō-ăg′yə-lā′shən)n.
Surgical coagulation of tissue by means of intense light energy, such as a laser beam, performed to destroy abnormal tissues or to form adhesive scars, especially in ophthalmology.
pho′to·co·ag′u·late v.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
photocoagulation
Ophthalmology The use of argon, or less commonly, xenon, lasers to focally burn the retina to ↓ neovascularization, microaneurysms, macular edema in Pts with various retinopathies Outcomes 50% ↓ in severe visual loss, compared to nontreated eyes. See Diabetic retinopathy. Cf Vitrectomy.McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
pho·to·co·ag·u·la·tion
(fō'tō-kō-ag'yū-lā'shŭn)A method by which a beam of electromagnetic energy is directed to a desired tissue under visual control; localized coagulation results from absorption of light energy and its conversion to heat or conversion of tissue to plasma (atoms stripped of electrons).
[photo- + L. coagulo, pp. -atus, to curdle]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
photocoagulation
Destruction of tissue by the heating effect of intense focused white light or by the use of a laser. It is widely used by ophthalmic surgeons to treat disorders of the RETINA, especially DIABETIC RETINOPATHY and areas of retinal degeneration that threaten to lead to retinal detachment.Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
Photocoagulation
Cancer treatment in which the tumor is destroyed by an intense beam of laser light.
Mentioned in: Retinoblastoma
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
photocoagulation
Process of changing blood and tissue from a fluid to a clotted state produced by the heat of an intense beam of light (e.g. laser), as used in the treatment or prophylactic treatment of retinal diseases (e.g. diabetic retinopathy, retinal detachments, retinal breaks, haemorrhages). See laser; age-related macular degeneration; retinal break; retinal detachment; diabetic retinopathy.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann