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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| Published in: | British journal of ophthalmology Vol. 88; no. 10; pp. 1274 - 1279 |
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| Language: | English |
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01.10.2004
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| Abstract | 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. |
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| AbstractList | 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. 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). 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. 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%). 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. 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).AIMTo 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).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.METHODSCharts 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.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%).RESULTSFDT 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%).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.CONCLUSIONFDT 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. |
| Author | DeLeon-Ortega, J Girkin, C A McGwin, G |
| AuthorAffiliation | 1 Optic Nerve Imaging Center of the University of Alabama at Birmingham, and Department of Ophthalmology, School of Medicine, University of Alabama at Birmingham, AL, USA 2 Department of Ophthalmology, School of Medicine and Department of Epidemiology and International Health, School of Public Health, University of Alabama at Birmingham, AL, USA |
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| Keywords | Nervous system diseases Optic neuropathy Cardiovascular disease Perimetry Arteritis Arterial disease Vascular disease Eye disease Cranial nerve disease Ischemia Technology Defect Frequency Ophthalmology |
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| Notes | 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 |
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| References_xml | – reference: 10159747 - Semin Ophthalmol. 1995 Sep;10(3):221-33 – reference: 15377539 - Br J Ophthalmol. 2004 Oct;88(10):1232-3 – reference: 9645720 - Am J Ophthalmol. 1998 Jun;125(6):830-6 – reference: 11384569 - Am J Ophthalmol. 2001 Jun;131(6):734-41 – reference: 7977604 - Am J Ophthalmol. 1994 Dec 15;118(6):766-80 – reference: 11923276 - Invest Ophthalmol Vis Sci. 2002 Apr;43(4):1277-83 – reference: 3189474 - Am J Ophthalmol. 1988 Nov 15;106(5):587-9 – reference: 7082754 - Biometrics. 1982 Mar;38(1):105-14 – reference: 3402741 - Graefes Arch Clin Exp Ophthalmol. 1988;226(3):206-12 – reference: 10845599 - Invest Ophthalmol Vis Sci. 2000 Jun;41(7):1783-90 – reference: 9885384 - Ophthalmologica. 1999;213(2):76-96 – reference: 10937566 - Invest Ophthalmol Vis Sci. 2000 Aug;41(9):2558-60 – reference: 8172267 - Am J Ophthalmol. 1994 May 15;117(5):603-24 – reference: 9713784 - J Glaucoma. 1998 Aug;7(4):261-5 – reference: 7055464 - Arch Ophthalmol. 1982 Jan;100(1):135-46 – reference: 9040475 - Invest Ophthalmol Vis Sci. 1997 Feb;38(2):413-25 |
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| Snippet | Aim: To determine if frequency doubling technology perimetry (FDT) is more sensitive to optic nerve injury in non-arteritic ischaemic optic neuropathy (NAION)... To determine if frequency doubling technology perimetry (FDT) is more sensitive to optic nerve injury in non-arteritic ischaemic optic neuropathy (NAION) than... |
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| SubjectTerms | 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 |
| Title | Frequency doubling technology perimetry in non-arteritic ischaemic optic neuropathy with altitudinal defects |
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