Radial optic neurotomy using nasal and temporal approach incisions: histopathologic study in human cadaver eyes.

Radial optic neurotomy using nasal and temporal approach incisions: histopathologic study in human cadaver eyes. Research Abstract Details 

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Radial optic neurotomy using nasal and temporal approach incisions: histopathologic study in human cadaver eyes. Abstract Text:

Michael M Altaweel,Lars Freisberg,Nikhil Pal,Joel Gleiser,Edwin H Ryan,Daniel Dawson,Daniel Albert,Michael M Altaweel,Lars Freisberg,Nikhil Pal,Joel Gleiser,Edwin H Ryan,Daniel Dawson,Daniel Albert,

OBJECTIVE: To examine the structural effect of radial optic neurotomy (RON) using nasal and temporal approach incisions on the nasal side of the optic nerve (ON) using dominant and nondominant hands in human cadaver eyes. METHODS: Transvitreal RON was performed in 9 eyes with a microvitreoretinal blade by a right-handed surgeon. A nasal approach was used in 4 left eyes (using the right hand) and in 2 right eyes (using the left hand), and a temporal approach was used in 3 right eyes (using the right hand). Histologic sections were examined for depth of nerve penetration and for effect on critical structures. RESULTS: The scleral canal was fully incised in all cases. The mean depth of nerve penetration was 555 micro25 microing the nasal approach and 246.7 microing the temporal approach) (P =.12). The globe was not ruptured in any eye. In a single right eye approached temporally using the right hand, the adventitial sheath of the central retinal artery was lacerated. CONCLUSIONS: RON in human cadaver eyes results in lysis of the scleral canal at the ON head. Greater depth and improved safety of incision can be achieved by always approaching the incision from the nasal side of the ON using the dominant or nondominant hand.

Radial optic neurotomy using nasal and temporal approach incisions: histopathologic study in human cadaver eyes. Publishing Authors By Initials

MM Altaweel,L Freisberg,N Pal,J Gleiser,EH Ryan,D Dawson,D Albert,MM Altaweel,L Freisberg,N Pal,J Gleiser,EH Ryan,D Dawson,D Albert,

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Radial optic neurotomy using nasal and temporal approach incisions: histopathologic study in human cadaver eyes. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Archives of ophthalmology

VOLUME: 125

Page Numbers: 1553-7

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ISSN: 0003-9950

DAY: 13

MONTH: Nov

YEAR: 2007

Radial optic neurotomy using nasal and temporal approach incisions: histopathologic study in human cadaver eyes. Information

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LANGUAGE: eng

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AFFILIATION: Department of Ophthalmology and Visual Sciences, University of Wisconsin, 2870 University Ave, Ste 206, Madison, WI 53705, USA. mmaltaweel@wisc.edu

Country: United States

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MEDLINETA: Arch Ophthalmol

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