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dc.contributor.authorTan, RS
dc.contributor.authorGuymer, RH
dc.contributor.authorLuu, CD
dc.date.accessioned2020-12-17T03:45:59Z
dc.date.available2020-12-17T03:45:59Z
dc.date.issued2018-05-01
dc.identifierpii: TVST-17-0609
dc.identifier.citationTan, R. S., Guymer, R. H. & Luu, C. D. (2018). Repeatability of Retinal Sensitivity Measurements Using a Medmont Dark-Adapted Chromatic Perimeter in Healthy and Age-Related Macular Degeneration Cases. TRANSLATIONAL VISION SCIENCE & TECHNOLOGY, 7 (3), https://doi.org/10.1167/tvst.7.3.3.
dc.identifier.issn2164-2591
dc.identifier.urihttp://hdl.handle.net/11343/255021
dc.description.abstractPurpose: To determine the intrasession and intersession test-retest repeatability of retinal sensitivity measurements using a dark-adapted chromatic perimeter (DACP). Methods: For intrasession testing, retinal sensitivity within the central 24° for the 505-nm stimulus was measured after 20, 30, and 40 minutes of dark adaptation (DA) and for the 625-nm stimulus was measured after the first and second 505-nm tests. For intersession testing, retinal sensitivity for both stimuli was measured after 30 minutes of DA at baseline and 1 month. The point-wise sensitivity (PWS) difference and coefficient of repeatability (CoR) of each stimulus and group were determined. Results: For intrasession testing, 10 age-related macular degeneration (AMD) and eight control subjects were recruited. The overall CoR for the 505-nm stimulus was 8.4 dB for control subjects and 9.1 dB for AMD cases, and for the 625-nm stimulus was 6.7 dB for control subjects and 9.5 dB for AMD cases. For intersession testing, seven AMD cases and 13 control subjects returned an overall CoR for the 505-nm stimulus of 8.2 dB for the control and 11.7 dB for the AMD group. For the 625-nm stimulus the CoR was 6.2 dB for the control group and 8.4 dB for the AMD group. Approximately 80% of all test points had a PWS difference of ±5 dB between the two intrasession or intersession measurements for both stimuli. Conclusions: The CoR for the DACP is larger than that reported for scotopic perimeters; however, the majority of test points had a PWS difference of ±5 dB between tests. Translational Relevance: The DACP offers an opportunity to measure static and dynamic rod function at multiple locations with an acceptable reproducibility level.
dc.languageEnglish
dc.publisherASSOC RESEARCH VISION OPHTHALMOLOGY INC
dc.titleRepeatability of Retinal Sensitivity Measurements Using a Medmont Dark-Adapted Chromatic Perimeter in Healthy and Age-Related Macular Degeneration Cases
dc.typeJournal Article
dc.identifier.doi10.1167/tvst.7.3.3
melbourne.affiliation.departmentOphthalmology (Eye & Ear Hospital)
melbourne.affiliation.departmentCentre for Eye Research Australia (CERA)
melbourne.source.titleTranslational Vision Science and Technology
melbourne.source.volume7
melbourne.source.issue3
dc.rights.licenseCC BY-NC-ND
melbourne.elementsid1328704
melbourne.contributor.authorLuu, Chi
melbourne.contributor.authorGuymer, Robyn
melbourne.contributor.authorLuu, Chi
dc.identifier.eissn2164-2591
melbourne.accessrightsOpen Access


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