{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T12:31:52Z","timestamp":1740141112324,"version":"3.37.3"},"reference-count":9,"publisher":"IOP Publishing","issue":"1","license":[{"start":{"date-parts":[[2022,12,1]],"date-time":"2022-12-01T00:00:00Z","timestamp":1669852800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"},{"start":{"date-parts":[[2022,12,1]],"date-time":"2022-12-01T00:00:00Z","timestamp":1669852800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/iopscience.iop.org\/info\/page\/text-and-data-mining"}],"content-domain":{"domain":["iopscience.iop.org"],"crossmark-restriction":false},"short-container-title":["J. Phys.: Conf. Ser."],"published-print":{"date-parts":[[2022,12,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>Coma is one of the most common ocular higher order aberrations and highly affects the quality of image. It is assumed that corneal aberrations are balanced by internal (lenticular) aberrations so that retinal image quality may not have great impact. However, during accommodation, the shape, position, and curvature of the crystalline lens changes which might disrupt this balance between internal and corneal aberration. This study aimed to investigate the effect of accommodation on primary coma (<jats:inline-formula>\n                     <jats:tex-math\/>\n                     <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" overflow=\"scroll\">\n                        <mml:mrow>\n                           <mml:msubsup>\n                              <mml:mi>C<\/mml:mi>\n                              <mml:mn>3<\/mml:mn>\n                              <mml:mrow>\n                                 <mml:mo>\u2212<\/mml:mo>\n                                 <mml:mn>1<\/mml:mn>\n                              <\/mml:mrow>\n                           <\/mml:msubsup>\n                        <\/mml:mrow>\n                     <\/mml:math>\n                     <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"JPCS_2407_1_012012_ieqn1.gif\" xlink:type=\"simple\"\/>\n                  <\/jats:inline-formula> and <jats:inline-formula>\n                     <jats:tex-math\/>\n                     <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" overflow=\"scroll\">\n                        <mml:mrow>\n                           <mml:msubsup>\n                              <mml:mi>C<\/mml:mi>\n                              <mml:mn>3<\/mml:mn>\n                              <mml:mn>1<\/mml:mn>\n                           <\/mml:msubsup>\n                        <\/mml:mrow>\n                     <\/mml:math>\n                     <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"JPCS_2407_1_012012_ieqn2.gif\" xlink:type=\"simple\"\/>\n                  <\/jats:inline-formula>) and secondary coma (<jats:inline-formula>\n                     <jats:tex-math\/>\n                     <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" overflow=\"scroll\">\n                        <mml:mrow>\n                           <mml:msubsup>\n                              <mml:mi>C<\/mml:mi>\n                              <mml:mn>5<\/mml:mn>\n                              <mml:mrow>\n                                 <mml:mo>\u2212<\/mml:mo>\n                                 <mml:mn>1<\/mml:mn>\n                              <\/mml:mrow>\n                           <\/mml:msubsup>\n                        <\/mml:mrow>\n                     <\/mml:math>\n                     <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"JPCS_2407_1_012012_ieqn3.gif\" xlink:type=\"simple\"\/>\n                  <\/jats:inline-formula> and <jats:inline-formula>\n                     <jats:tex-math\/>\n                     <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" overflow=\"scroll\">\n                        <mml:mrow>\n                           <mml:msubsup>\n                              <mml:mi>C<\/mml:mi>\n                              <mml:mn>5<\/mml:mn>\n                              <mml:mn>1<\/mml:mn>\n                           <\/mml:msubsup>\n                        <\/mml:mrow>\n                     <\/mml:math>\n                     <jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"JPCS_2407_1_012012_ieqn4.gif\" xlink:type=\"simple\"\/>\n                  <\/jats:inline-formula>) in relaxed and accommodated eyes. Zernike coefficients were measured in 53 subjects with Hartmann-Shack aberrometer both at the central and peripheral retina up to 30\u00b0 off-axis in horizontal and vertical meridians. The process was repeated with 2.50 D accommodation stimulus and comas were compared with and without accommodation. Root-mean-square of total coma was also assessed. With accommodation, vertical comas changed to more negative value and horizontal comas changed to more positive values in most of the off-axis positions. In contrast, the secondary vertical comas became less negative and secondary horizontal comas became more negative with accommodation in most of the off-axis fixations. Thus, the results showed that accommodation affects coma which depends up on position of the fixation.<\/jats:p>","DOI":"10.1088\/1742-6596\/2407\/1\/012012","type":"journal-article","created":{"date-parts":[[2022,12,15]],"date-time":"2022-12-15T18:32:05Z","timestamp":1671129125000},"page":"012012","update-policy":"https:\/\/doi.org\/10.1088\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Effect of accommodation on coma at central and peripheral retina"],"prefix":"10.1088","volume":"2407","author":[{"given":"Kishor","family":"Sapkota","sequence":"first","affiliation":[]},{"given":"Jessica","family":"Gomes","sequence":"additional","affiliation":[]},{"given":"Sandra","family":"Franco","sequence":"additional","affiliation":[]}],"member":"266","reference":[{"key":"JPCS_2407_1_012012bib1","doi-asserted-by":"crossref","first-page":"116","DOI":"10.1590\/S0004-27492012000200009","article-title":"Comparison of wavefront aberrations under cycloplegic, scotopic and photopic conditions using WaveScan","volume":"75","author":"Fan","year":"2012","journal-title":"Arq. Bras. Oftalmol."},{"key":"JPCS_2407_1_012012bib2","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1167\/11.3.19","article-title":"MRI study of the changes in crystalline lens shape with accommodation and aging in humans","volume":"11","author":"Kasthurirangan","year":"2011","journal-title":"J. Vis"},{"key":"JPCS_2407_1_012012bib3","doi-asserted-by":"crossref","first-page":"466","DOI":"10.1167\/5.5.7","article-title":"The effect of ocular aberrations on steady-state errors of accommodative response","volume":"5","author":"Plainis","year":"2005","journal-title":"J. Vis"},{"key":"JPCS_2407_1_012012bib4","doi-asserted-by":"crossref","first-page":"2963","DOI":"10.1364\/JOSAA.24.002963","article-title":"Measuring ocular aberrations in the peripheral visual field using Hartmann-Shack aberrometry","volume":"24","author":"Atchison","year":"2007","journal-title":"J. Opt. Soc. Am"},{"key":"JPCS_2407_1_012012bib5","doi-asserted-by":"crossref","first-page":"64","DOI":"10.3390\/photonics9020064","article-title":"Effect of Accommodation on Peripheral Higher Order Aberrations","volume":"9","author":"Sapkota","year":"2022","journal-title":"Photonics"},{"key":"JPCS_2407_1_012012bib6","first-page":"4","article-title":"A population study on changes in wave aberrations with accommodation","volume":"16","author":"Cheng","year":"2004","journal-title":"J. Vis"},{"key":"JPCS_2407_1_012012bib7","doi-asserted-by":"crossref","first-page":"117","DOI":"10.1016\/j.visres.2004.07.032","article-title":"Change in shape of the aging human crystalline lens with accommodation","volume":"45","author":"Dubbelman","year":"2005","journal-title":"Vision Research"},{"key":"JPCS_2407_1_012012bib8","doi-asserted-by":"crossref","first-page":"115","DOI":"10.1038\/eye.2014.244","article-title":"Wavefront aberration changes caused by a gradient of increasing accommodation stimuli","volume":"29","author":"Zhou","year":"2015","journal-title":"Eye"},{"key":"JPCS_2407_1_012012bib9","doi-asserted-by":"crossref","first-page":"443","DOI":"10.1111\/j.1444-0938.2011.00624.x","article-title":"Peripheral aberration measurements: elliptical pupil transformation and variations in horizontal coma across the visual field","volume":"94","author":"Hartwig","year":"2011","journal-title":"Clin. Exp. Optom."}],"container-title":["Journal of Physics: Conference Series"],"original-title":[],"link":[{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/2407\/1\/012012","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/2407\/1\/012012\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/2407\/1\/012012\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/2407\/1\/012012\/pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,12,15]],"date-time":"2022-12-15T18:32:13Z","timestamp":1671129133000},"score":1,"resource":{"primary":{"URL":"https:\/\/iopscience.iop.org\/article\/10.1088\/1742-6596\/2407\/1\/012012"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,12,1]]},"references-count":9,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2022,12,1]]}},"URL":"https:\/\/doi.org\/10.1088\/1742-6596\/2407\/1\/012012","relation":{},"ISSN":["1742-6588","1742-6596"],"issn-type":[{"type":"print","value":"1742-6588"},{"type":"electronic","value":"1742-6596"}],"subject":[],"published":{"date-parts":[[2022,12,1]]},"assertion":[{"value":"Effect of accommodation on coma at central and peripheral retina","name":"article_title","label":"Article Title"},{"value":"Journal of Physics: Conference Series","name":"journal_title","label":"Journal Title"},{"value":"paper","name":"article_type","label":"Article Type"},{"value":"Published under licence by IOP Publishing Ltd","name":"copyright_information","label":"Copyright Information"},{"name":"date_received","label":"Date Received","group":{"name":"publication_dates","label":"Publication dates"}},{"name":"date_accepted","label":"Date Accepted","group":{"name":"publication_dates","label":"Publication dates"}},{"name":"date_epub","label":"Online publication date","group":{"name":"publication_dates","label":"Publication dates"}}]}}