Frequency doubling technology perimetry in non-arteritic ischaemic optic neuropathy with altitudinal defects

Aim: To determine if frequency doubling technology perimetry (FDT) is more sensitive to optic nerve injury in non-arteritic ischaemic optic neuropathy (NAION) than standard automated perimetry (SAP). Methods: Charts from 18 patients (20 eyes) with NAION with altitudinal defects who underwent a compl...

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Vydané v:	British journal of ophthalmology Ročník 88; číslo 10; s. 1274 - 1279
Hlavní autori:	Girkin, C A, McGwin, G, DeLeon-Ortega, J
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	BMA House, Tavistock Square, London, WC1H 9JR BMJ Publishing Group Ltd 01.10.2004 BMJ BMJ Publishing Group LTD Copyright 2004 British Journal of Ophthalmology
Predmet:	Adult Aged Automation Biological and medical sciences Blood and lymphatic vessels Cardiology. Vascular system Clinical Science - Extended Reports Confidence intervals Defects Diseases of the peripheral vessels. Diseases of the vena cava. Miscellaneous Diseases of visual field, optic nerve, optic chiasma and optic tracts FDT Female frequency doubling technology frequency doubling technology perimetry Glaucoma Humans Male Medical sciences Middle Aged NAION non-arteritic ischaemic optic neuropathy Ophthalmology Optic Disk - pathology Optic Nerve Diseases - complications Optic Nerve Diseases - diagnosis Optic Nerve Diseases - physiopathology SAP Scotoma - diagnosis Scotoma - etiology Scotoma - physiopathology SITA standard achromatic perimetry Swedish Interactive Thresholding Algorithm Visual Field Tests - methods Visual Fields Nervous system diseases Optic neuropathy Cardiovascular disease Perimetry Arteritis Arterial disease Vascular disease Eye disease Cranial nerve disease Ischemia Technology Defect Frequency Ophthalmology
ISSN:	0007-1161, 1468-2079
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Popis
Shrnutí:	Aim: To determine if frequency doubling technology perimetry (FDT) is more sensitive to optic nerve injury in non-arteritic ischaemic optic neuropathy (NAION) than standard automated perimetry (SAP). Methods: Charts from 18 patients (20 eyes) with NAION with altitudinal defects who underwent a complete neuro-ophthalmic examination, SAP, and FDT were reviewed. The extent of damage as determined by SAP, FDT, and clinical estimation of the regional extent of optic disc pallor was compared. 10 subjects (20 eyes) with normal ocular examinations and full appearing optic nerve heads were included as a control group. Results: FDT demonstrated more extensive visual field defects in the relatively intact hemifield on SAP (proportion of locations at 5% or worse in the total deviation plot was 8.7% (SD 6.2%) for SAP and 38.3% (39.5%) for FDT p<0.0027). 16 of 20 eyes with altitudinal NAION demonstrated diffuse optic disc pallor. 11 of these eyes with diffuse pallor demonstrated significant defects in both hemifields using FDT, while only two eyes demonstrated diffuse damage using SAP. Correspondence between the extent of optic disc pallor and the extent of visual scotoma was higher for FDT (85%) than with SAP (40%). Conclusion: FDT appears more sensitive to axonal injury reflected by the extent of optic disc pallor in altitudinal NAION than SAP and in some patients reveals visual dysfunction in the hemifield that appeared relatively uninvolved when evaluated using SAP.
Bibliografia:	istex:1F049935630C78D772F59051F2B55FBC5921DC79 Correspondence to: Christopher Girkin MD Department of Ophthalmology, University of Alabama at Birmingham, Callahan Eye Foundation Hospital, 700 South 18th Street, Suite 601, Birmingham, AL, 35233, USA; cgirkin@uabmc.edu local:0881274 ark:/67375/NVC-BRM42BGJ-1 PMID:15377550 href:bjophthalmol-88-1274.pdf ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Article-2 ObjectType-Undefined-1 ObjectType-Feature-3 content type line 23 Correspondence to: Christopher Girkin MD Department of Ophthalmology, University of Alabama at Birmingham, Callahan Eye Foundation Hospital, 700 South 18th Street, Suite 601, Birmingham, AL, 35233, USA; cgirkin@uabmc.edu
ISSN:	0007-1161 1468-2079
DOI:	10.1136/bjo.2004.046383