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dc.contributor.authorRavikumar, Ayeswarya
dc.contributor.authorMarsack, Jason D.
dc.contributor.authorBedell, Harold E.
dc.contributor.authorShi, Yue
dc.contributor.authorApplegate, Raymond A.
dc.date.accessioned2017-12-06T22:28:28Z
dc.date.available2017-12-06T22:28:28Z
dc.date.issued2013-11
dc.identifier10.1167/13.13.28
dc.identifier.citationCopyright 2013 Journal of Vision. Recommended citation: Ravikumar, Ayeswarya, Jason D. Marsack, Harold E. Bedell, Yue Shi, and Raymond A. Applegate. "Change in visual acuity is well correlated with change in image-quality metrics for both normal and keratoconic wavefront errors." Journal of vision 13, no. 13 (2013): 28-28. doi: 10.1167/13.13.28. URL: http://jov.arvojournals.org/article.aspx?articleid=2193847. Reproduced in accordance with licensing terms and with author permission.
dc.identifier.urihttp://hdl.handle.net/10657/2064
dc.description.abstractWe determined the degree to which change in visual acuity (VA) correlates with change in optical quality using image-quality (IQ) metrics for both normal and keratoconic wavefront errors (WFEs). VA was recorded for five normal subjects reading simulated, logMAR acuity charts generated from the scaled WFEs of 15 normal and seven keratoconic eyes. We examined the correlations over a large range of acuity loss (up to 11 lines) and a smaller, more clinically relevant range (up to four lines). Nine IQ metrics were well correlated for both ranges. Over the smaller range of primary interest, eight were also accurate and precise in estimating the variations in logMAR acuity in both normal and keratoconic WFEs. The accuracy for these eight best metrics in estimating the mean change in logMAR acuity ranged between ±0.0065 to ±0.017 logMAR (all less than one letter), and the precision ranged between ±0.10 to ±0.14 logMAR (all less than seven letters).
dc.language.isoen_US
dc.publisherJournal of Vision
dc.titleChange in visual acuity is well correlated with change in image-quality metrics for both normal and keratoconic wavefront errors
dc.typeArticle
dc.description.departmentVision Science


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