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iridectomy

Term:  iridectomy
 Literally meaning: “incision of iris”
Origin: Anc Greek
=éρις/iris(=rainbow) > gen ίριδος/iridos 
+ τομή/tome(=section, slice, trunk, stalk) >τέμνω/temno(=cut
Coined/History
Iris was the Greek  goddess of the rainbow giving her name to the eye’s iris due to its many colours. The procedure of iredectomy was discovered in 1856 by Albrecht von Graefe  as an effective surgical method for acute glaucoma treatment.   
Definition
Iridectomy is the surgical removal of part of the iris (coloured circular membrane behind the cornea). An iridectomy is most often performed to treat closed-angle glaucoma or melanoma of the iris. 

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