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http://hdl.handle.net/10261/130817
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dc.contributor.author | Marcos, Susana | - |
dc.contributor.author | Velasco Ocaña, Miriam | - |
dc.contributor.author | Dorronsoro, Carlos | - |
dc.contributor.author | Sawides, L. | - |
dc.contributor.author | Hernandez, M. | - |
dc.contributor.author | Marín, Gildas | - |
dc.date.issued | 2015-08-03 | - |
dc.identifier | doi: 10.1167/15.11.4 | - |
dc.identifier | issn: 1534-7362 | - |
dc.identifier.citation | Journal of Vision 15: 1- 12 (2015) | - |
dc.identifier.uri | http://hdl.handle.net/10261/130817 | - |
dc.description | 12 págs.; 9 figs.; 1 tab. | - |
dc.description.abstract | © 2015 ARVO. We studied the role of native astigmatism and ocular aberrations on best-focus setting and its shift upon induction of astigmatism in 42 subjects (emmetropes, myopes, hyperopes, with-the-rule [WTR] and against-the-rule [ATR] myopic astigmats). Stimuli were presented in a custom-developed adaptive optics simulator, allowing correction for native aberrations and astigmatism induction (+1 D; 6-mm pupil). Best-focus search consisted on randomized-step interleaved staircase method. Each subject searched best focus for four different images, and four different conditions (with/without aberration correction, with/without astigmatism induction). The presence of aberrations induced a significant shift in subjective best focus (0.4 D; p < 0.01), significantly correlated (p = 0.005) with the best-focus shift predicted from optical simulations. The induction of astigmatism produced a statistically significant shift of the best-focus setting in all groups under natural aberrations (p = 0.001), and in emmetropes and in WTR astigmats under corrected aberrations (p < 0.0001). Best-focus shift upon induced astigmatism was significantly different across groups, both for natural aberrations and AO-correction (p < 0.0001). Best focus shifted in opposite directions in WTR and ATR astigmats upon induction of astigmatism, symmetrically with respect to the best-focus shift in nonastigmatic myopes. The shifts are consistent with a bias towards vertical and horizontal retinal blur in WTR and ATR astigmats, respectively, indicating adaptation to native astigmatism. | - |
dc.description.sponsorship | The research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement n. [ERC-2011- AdC 294099]. This study was supported by grants FIS2011-24637 to SM and a collaborative research project funded by Essilor International. Optometric examinations were performed in the Faculty of Optometry Clinic of the University Complutense de Madrid (Madrid, Spain). GM and MH work for Essilor International. | - |
dc.publisher | Association for Research in Vision and Ophthalmology | - |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/294099 | - |
dc.relation | MICINN/FIS2011-24637 | - |
dc.relation.isversionof | Publisher's version | - |
dc.rights | openAccess | - |
dc.title | Impact of astigmatism and high-order aberrations on subjective best focus | - |
dc.type | artículo | - |
dc.identifier.doi | 10.1167/15.11.4 | - |
dc.relation.publisherversion | http://dx.doi.org/10.1167/15.11.4 | - |
dc.date.updated | 2016-04-06T12:18:59Z | - |
dc.description.version | Peer Reviewed | - |
dc.language.rfc3066 | eng | - |
dc.contributor.funder | European Research Council | - |
dc.contributor.funder | Ministerio de Ciencia e Innovación (España) | - |
dc.contributor.funder | Universidad Complutense de Madrid | - |
dc.relation.csic | Sí | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100000781 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100004837 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100002911 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
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