A comparison of perimetric results with the Medmont and Humphrey perimeters

Background: The Humphrey field analyser (HFA), Humphrey-Zeiss frequency doubling perimeter, and the Medmont automated perimeter (MAP) are three commonly used automated perimeters with threshold achromatic methodologies. Visual field loss may be detected earlier with strategies that target cell lines...

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Vydáno v:	British journal of ophthalmology Ročník 87; číslo 6; s. 690 - 694
Hlavní autoři:	Landers, J, Sharma, A, Goldberg, I, Graham, S
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	BMA House, Tavistock Square, London, WC1H 9JR BMJ Publishing Group Ltd 01.06.2003 BMJ BMJ Publishing Group LTD Copyright 2003 British Journal of Ophthalmology
Témata:	AAP Accuracy achromatic automated perimetry Area Under Curve area under the receiver operator curve AUC Automation Biological and medical sciences Equipment and supplies FDP Female Flicker Fusion frequency doubling perimetry Glaucoma Glaucoma - diagnosis Glaucoma - physiopathology HFA Humans Humphrey field analyser Humphrey perimetry Investigative techniques of ocular function and vision Investigative techniques, diagnostic techniques (general aspects) Light emitting diodes Male Medical sciences Medmont automated perimeter Medmont perimetry Middle Aged Ophthalmology Patients Perimetry ROC Curve Scientific Correspondence Sensory Thresholds short wavelength automated perimetry SITA SWAP Swedish Interactive Thresholding Algorithm Visual Field Tests - standards Visual Fields United Kingdom Human Eye Perimetry Technique Comparative study
ISSN:	0007-1161, 1468-2079
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Popis
Shrnutí:	Background: The Humphrey field analyser (HFA), Humphrey-Zeiss frequency doubling perimeter, and the Medmont automated perimeter (MAP) are three commonly used automated perimeters with threshold achromatic methodologies. Visual field loss may be detected earlier with strategies that target cell lines with reduced redundancy or which suffer selective damage. Method: To compare these three perimeters, 63 subjects who were glaucoma suspects, ocular hypertensives, glaucoma patients, or normal controls were recruited selectively. All subjects underwent testing using MAP central threshold, MAP flicker perimetry, HFA full threshold, HFA SITA perimetry, HFA short wavelength perimetry (SWAP), and frequency doubling perimetry (FDP). After visual field testing, equivalent tests were compared: MAP central threshold with HFA full threshold and HFA SITA perimetry; Medmont flicker perimetry with HFA SWAP and FDP. Results: On analysis of the MAP central threshold a kappa statistic and an area under the receiver operator curve (AUC) of 0.90 and 0.94, respectively, were found compared with HFA full threshold strategies, and 0.87 and 0.92 respectively, compared with HFA SITA. For MAP flicker a kappa statistic and an AUC of 0.65 and 0.81, respectively, were found compared with HFA SWAP and 0.87 and 0.96, respectively, compared with FDP. A quadrant analysis and comparison of mean defect between tests was also highly significant. Conclusion: Medmont and Humphrey perimeters correlated well; both may be used for clinical and research purposes with similar confidence.
Bibliografie:	local:0870690 href:bjophthalmol-87-690.pdf PMID:12770962 ark:/67375/NVC-4HZDNK0Q-P istex:1AAC06A809DDDCC58F25B3E54B0A963561DBA409 Correspondence to: Dr John Landers, Park House, Floor 4, Suite 2, 187 Macquarie Street, Sydney, NSW 2000, Australia; landers@lisp.com.au ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Article-2 ObjectType-Feature-1 content type line 23 Correspondence to: Dr John Landers, Park House, Floor 4, Suite 2, 187 Macquarie Street, Sydney, NSW 2000, Australia; landers@lisp.com.au
ISSN:	0007-1161 1468-2079
DOI:	10.1136/bjo.87.6.690