{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T14:42:26Z","timestamp":1788964946104,"version":"build-2803163510"},"reference-count":32,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2013,1,1]],"date-time":"2013-01-01T00:00:00Z","timestamp":1356998400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2013,1,1]],"date-time":"2013-01-01T00:00:00Z","timestamp":1356998400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["OVS"],"published-print":{"date-parts":[[2013,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To determine the intraexaminer repeatability and intersession reproducibility of corneal deformation measurement using Scheimpflug noncontact tonometry (Corvis ST) on normal subjects.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Thirty\u2010seven adults aged 20 to 48 years were invited to have their corneal deformation and curvature measurements taken using Corvis ST and Pentacam, respectively. Three consecutive measurements were taken for each instrument between 9:00 and 11:00 AM for intraexaminer repeatability analysis. Participants returned between 3:00 and 5:00 PM the same day for intersession reproducibility analysis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The most repeatable corneal parameter measured by Corvis ST was central corneal thickness ([CCT] ICC, 0.96; precision, 10.85 \u03bcm; repeatability, 15.34 \u03bcm; CV, 1.01%), followed by deformation amplitude ([DA] ICC, 0.80; precision, 0.08 mm; repeatability, 0.13 mm; CV, 4.33%), first applanation time ([1st A\u2010time] ICC, 0.77; precision, 0.22 milliseconds; repeatability, 0.31 milliseconds; CV, 1.42), and intraocular pressure ([IOP] ICC, 0.75; precision, 1.39 mm Hg; repeatability, 1.97 mm Hg; CV, 4.98). Other parameters showed poor repeatability. The DA and 1st A\u2010time showed good intersession reproducibility. The 95% limits of agreement were +0.13 to \u22120.13 mm for DA and +0.27 to \u22120.33 milliseconds for 1st A\u2010time. The DA was negatively correlated with central corneal thickness (\n                      <jats:italic>r<\/jats:italic>\n                      = \u22120.53, p &lt; 0.001) but not with corneal curvatures (flattest curvature,\n                      <jats:italic>r<\/jats:italic>\n                      = 0.13, p = 0.46; steepest curvature,\n                      <jats:italic>r<\/jats:italic>\n                      = 0.05, p = 0.75).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Corneal deformation parameters DA and 1st A\u2010time were repeatable and reproducible. A thinner cornea was associated with a higher corneal deformation. Measurement of DA serves as an indicator of corneal biomechanical properties.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1097\/opx.0b013e318279eb87","type":"journal-article","created":{"date-parts":[[2012,12,13]],"date-time":"2012-12-13T03:14:00Z","timestamp":1355368440000},"source":"Crossref","is-referenced-by-count":190,"title":["Corneal Deformation Measurement Using Scheimpflug Noncontact Tonometry"],"prefix":"10.1002","volume":"90","author":[{"given":"Ying","family":"Hon","sequence":"first","affiliation":[{"name":"School of Optometry The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andrew K.C.","family":"Lam","sequence":"additional","affiliation":[{"name":"School of Optometry The Hong Kong Polytechnic University Hung Hom Kowloon Hong Kong"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2013,1,1]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"crossref","first-page":"1415","DOI":"10.1136\/bjo.2008.140178","article-title":"The elasticity and rigidity of the outer coats of the eye","volume":"92","author":"Asejczyk\u2010Widlicka M","year":"2008","journal-title":"Br J Ophthalmol"},{"key":"e_1_2_9_3_1","doi-asserted-by":"crossref","first-page":"3896","DOI":"10.1016\/j.biomaterials.2008.06.011","article-title":"Full\u2010field deformation of bovine cornea under constrained inflation conditions","volume":"29","author":"Boyce BL","year":"2008","journal-title":"Biomaterials"},{"key":"e_1_2_9_4_1","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1080\/02713680701882519","article-title":"Experimental assessment of human corneal hysteresis","volume":"33","author":"Elsheikh A","year":"2008","journal-title":"Curr Eye Res"},{"key":"e_1_2_9_5_1","doi-asserted-by":"crossref","first-page":"3919","DOI":"10.1167\/iovs.07-1321","article-title":"A viscoelastic biomechanical model of the cornea describing the effect of viscosity and elasticity on hysteresis","volume":"49","author":"Glass DH","year":"2008","journal-title":"Invest Ophthalmol Vis Sci"},{"key":"e_1_2_9_6_1","doi-asserted-by":"crossref","first-page":"146","DOI":"10.1016\/j.jcrs.2004.09.031","article-title":"Influence of corneal biomechanical properties on intraocular pressure measurement: quantitative analysis","volume":"31","author":"Liu J","year":"2005","journal-title":"J Cataract Refract Surg"},{"issue":"2","key":"e_1_2_9_7_1","doi-asserted-by":"crossref","first-page":"S109","DOI":"10.1016\/j.survophthal.2007.08.004","article-title":"What biomechanical properties of the cornea are relevant for the clinician?","volume":"52","author":"Kotecha A","year":"2007","journal-title":"Surv Ophthalmol"},{"key":"e_1_2_9_8_1","doi-asserted-by":"crossref","first-page":"156","DOI":"10.1016\/j.jcrs.2004.10.044","article-title":"Determining in vivo biomechanical properties of the cornea with an ocular response analyzer","volume":"31","author":"Luce DA","year":"2005","journal-title":"J Cataract Refract Surg"},{"key":"e_1_2_9_9_1","doi-asserted-by":"crossref","first-page":"343","DOI":"10.1097\/OPX.0b013e3182417223","article-title":"Assessing corneal hysteresis using the ocular response analyzer","volume":"89","author":"McMonnies CW","year":"2012","journal-title":"Optom Vis Sci"},{"key":"e_1_2_9_10_1","doi-asserted-by":"crossref","first-page":"473","DOI":"10.1364\/BOE.3.000473","article-title":"Dynamic OCT measurement of corneal deformation by an air puff in normal and cross\u2010linked corneas","volume":"3","author":"Dorronsoro C","year":"2012","journal-title":"Biomed Opt Express"},{"key":"e_1_2_9_11_1","doi-asserted-by":"crossref","first-page":"14188","DOI":"10.1364\/OE.19.014188","article-title":"Assessment of corneal dynamics with high\u2010speed swept source optical coherence tomography combined with an air puff system","volume":"19","author":"Alonso\u2010Caneiro D","year":"2011","journal-title":"Opt Express"},{"key":"e_1_2_9_12_1","unstructured":"Ambr\u00f3sioR Jr. CaldasDL RamosIC SantosRT PimentelLN RobertsCJ BelinMW.Corneal biomechanical assessment using dynamic ultra high\u2010speed Scheimpflug technology noncontact tonometry (UHS\u2010ST NCT): preliminary results. 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