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Measuring Visual Function Using the MultiQuity System:Comparison with an Established Device

Creator:

Smolarek-Kasprzak P, Nolan JM, Beatty S, Dennison J, Akuffo KO, Kuchling R, Stack J, O'Regan G

Subject Keywords: Nutrition, Ageing, Older People, Mental Health, Alzheimer's Disease
Catalogue: Systematic Reviews
Type: Report
Region: Republic of Ireland
Description:

Purpose. To compare measures of visual acuity (VA) and contrast sensitivity (CS) from the Thompson Xpert 2000 and MultiQuity(MiQ) devices.Methods. Corrected distance VA (CDVA) and CS were measured in the right eye of 73 subjects, on an establishedsystem (Thompson Xpert) and a novel system (MiQ 720). Regression was used to convert MiQ scores into the Thompson scale.Agreement between the converted MiQ and Thompson scores was investigated using standard agreement indices. Test-retestvariability for both devices was also investigated, for a separate sample of 24 subjects.Results.ForCDVA,agreementwasstrongbetween the MiQ and Thomson devices (accuracy = 0.993, precision = 0.889, CCC = 0.883). For CS, agreement was also strong(accuracy = 0.996, precision = 0.911, CCC = 0.907). Agreement was unaffected by demographic variables or by presence/absenceof ocular pathology. Test-retest agreement indices for both devices were excellent: in the range 0.880.96 for CDVA and in therange 0.900.98 for CS.Conclusion.MiQmeasurementsexhibitstrongagreementwithcorrespondingThomsonmeasurements,and test-retest results are good for both devices. Agreement between the two devices is unaffected by age or ocular pathology

Date:

16/12/2014

Rights: © Public
Suggested citation:

Smolarek-Kasprzak P, Nolan JM, Beatty S, Dennison J, Akuffo KO, Kuchling R, Stack J, O'Regan G. (2014) Measuring Visual Function Using the MultiQuity System:Comparison with an Established Device [Online]. Available from: http://publichealthwell.ie/node/1264322 [Accessed: 19th August 2019].

  

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Contributor:

Nutritional Research Centre Ireland (NRCI)
 
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