{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T12:15:50Z","timestamp":1774959350710,"version":"3.50.1"},"reference-count":24,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2013,7,1]],"date-time":"2013-07-01T00:00:00Z","timestamp":1372636800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2013,7,1]],"date-time":"2013-07-01T00:00:00Z","timestamp":1372636800000},"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":[[2013,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>The purpose of this study was to evaluate the predictive value of corneal topography data for fitting ClearKone hybrid contact lenses on eyes with corneal ectasia.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Ophthalmic records from eyes with established corneal ectasia that had been successfully fitted with SynergEyes ClearKone lenses (n = 73) were retrospectively reviewed. Correlations between corneal parameters (simulated steep and flat keratometry values, average corneal sagittal height, inferior\u2010superior index for keratoconus, corneal eccentricity, cone displacement, and cone diameter) and ClearKone lens parameters (vault and skirt curvature) were analyzed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Two topographical correlates to ClearKone lens parameters were identified. Mean weighted corneal sagittal height at a 7.4\u2010mm chord was strongly predictive of the optimal ClearKone lens vault; a linear relationship was observed between these parameters (\n                      <jats:italic>R<\/jats:italic>\n                      <jats:sup>2<\/jats:sup>\n                      = 0.96). More significant vertical decentration of the corneal apex was found to be associated with the need for a steeper lens skirt curvature (p &lt; 0.05).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This study demonstrates that baseline corneal topography\u2013derived data are valuable for predicting lens parameters for an optimally fit SynergEyes ClearKone hybrid contact lens.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1097\/opx.0b013e318297da25","type":"journal-article","created":{"date-parts":[[2013,6,7]],"date-time":"2013-06-07T07:08:41Z","timestamp":1370588921000},"source":"Crossref","is-referenced-by-count":13,"title":["Predictive Value of Corneal Topography for ClearKone Hybrid Contact Lenses"],"prefix":"10.1002","volume":"90","author":[{"given":"Laura E.","family":"Downie","sequence":"first","affiliation":[{"name":"Department of Optometry and Vision Sciences University of Melbourne Victoria Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2013,7,1]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"crossref","first-page":"692","DOI":"10.1097\/00006324-199910000-00020","article-title":"Rigid contact lens fitting relationships in keratoconus. Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study Group","volume":"76","author":"Edrington TB","year":"1999","journal-title":"Optom Vis Sci"},{"key":"e_1_2_9_3_1","doi-asserted-by":"crossref","first-page":"230","DOI":"10.1111\/j.1444-0938.1999.tb06653.x","article-title":"RGP fitting philosophies for keratoconus","volume":"82","author":"Leung KK","year":"1999","journal-title":"Clin Exp Optom"},{"key":"e_1_2_9_4_1","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1385\/AO:35:1:19","article-title":"Correction of keratoconus with rigid gas\u2010permeable contact lenses","volume":"35","author":"Lin YC","year":"2003","journal-title":"Ann Ophthalmol"},{"key":"e_1_2_9_5_1","doi-asserted-by":"crossref","first-page":"433","DOI":"10.1016\/S0161-6420(90)32569-1","article-title":"Clinical management of keratoconus. A multicenter analysis","volume":"97","author":"Lass JH","year":"1990","journal-title":"Ophthalmology"},{"key":"e_1_2_9_6_1","first-page":"1457","volume-title":"Cornea: Diagnosis and Management","author":"Asbell PA","year":"1997"},{"key":"e_1_2_9_7_1","doi-asserted-by":"crossref","first-page":"5","DOI":"10.1097\/ICO.0b013e3181a9d090","article-title":"SynergEyes lenses for keratoconus","volume":"29","author":"Abdalla YF","year":"2010","journal-title":"Cornea"},{"key":"e_1_2_9_8_1","doi-asserted-by":"crossref","first-page":"451","DOI":"10.1038\/eye.1996.99","article-title":"Topographic analysis in pellucid marginal corneal degeneration and keratoglobus","volume":"10","author":"Karabatsas CH","year":"1996","journal-title":"Eye"},{"key":"e_1_2_9_9_1","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1016\/0039-6257(84)90094-8","article-title":"Keratoconus and related noninflammatory corneal thinning disorders","volume":"28","author":"Krachmer JH","year":"1984","journal-title":"Surv Ophthalmol"},{"key":"e_1_2_9_10_1","doi-asserted-by":"crossref","first-page":"371","DOI":"10.3928\/1081-597X-19950901-14","article-title":"Videokeratographic indices to aid in screening for keratoconus","volume":"11","author":"Rabinowitz YS","year":"1995","journal-title":"J Refract Surg"},{"key":"e_1_2_9_11_1","first-page":"206","article-title":"The role of computerized corneal topography in rigid gas permeable contact lens fitting","volume":"24","author":"Bufidis T","year":"1998","journal-title":"CLAO J"},{"key":"e_1_2_9_12_1","first-page":"238","article-title":"Contact lens fitting guidelines for the keratoconic patient using videokeratograhic data","volume":"10","author":"Sorbara L","year":"1999","journal-title":"Practical Optom"},{"key":"e_1_2_9_13_1","doi-asserted-by":"crossref","first-page":"112","DOI":"10.1016\/j.clae.2010.01.002","article-title":"The use of video\u2010keratoscopy in predicting contact lens parameters for keratoconic fitting","volume":"33","author":"Sorbara L","year":"2010","journal-title":"Cont Lens Anterior Eye"},{"key":"e_1_2_9_14_1","first-page":"135","article-title":"The use of computerized videokeratography as an aid in fitting rigid gas permeable contact lenses","volume":"94","author":"Donshik PC","year":"1996","journal-title":"Trans Am Ophthalmol Soc"},{"key":"e_1_2_9_15_1","doi-asserted-by":"crossref","first-page":"483","DOI":"10.1097\/00006324-200009000-00009","article-title":"The accuracy and precision performance of four videokeratoscopes in measuring test surfaces","volume":"77","author":"Tang W","year":"2000","journal-title":"Optom Vis Sci"},{"key":"e_1_2_9_16_1","first-page":"175","article-title":"The performance of four different corneal topographers on normal human corneas and its impact on orthokeratology lens fitting","volume":"79","author":"Cho P","year":"2002","journal-title":"Optom Vis Sci"},{"key":"e_1_2_9_17_1","doi-asserted-by":"crossref","first-page":"794","DOI":"10.1097\/01.ico.0000226359.26678.d1","article-title":"A new method for grading the severity of keratoconus: the Keratoconus Severity Score (KSS). Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study Group","volume":"25","author":"McMahon TT","year":"2006","journal-title":"Cornea"},{"key":"e_1_2_9_18_1","doi-asserted-by":"crossref","first-page":"887","DOI":"10.1016\/S0002-9394(14)70388-5","article-title":"Tangential vs sagittal videokeratographs in the \u201cearly\u201d detection of keratoconus","volume":"122","author":"Rabinowitz YS","year":"1996","journal-title":"Am J Ophthalmol"},{"key":"e_1_2_9_19_1","doi-asserted-by":"crossref","first-page":"1327","DOI":"10.1016\/S0886-3350(99)00195-9","article-title":"KISA% index: a quantitative videokeratography algorithm embodying minimal topographic criteria for diagnosing keratoconus","volume":"25","author":"Rabinowitz YS","year":"1999","journal-title":"J Cataract Refract Surg"},{"key":"e_1_2_9_20_1","doi-asserted-by":"crossref","first-page":"369","DOI":"10.1097\/00006324-199606000-00003","article-title":"Standardized rigid contact lens fitting protocol for keratoconus","volume":"73","author":"Edrington TB","year":"1996","journal-title":"Optom Vis Sci"},{"key":"e_1_2_9_21_1","doi-asserted-by":"crossref","first-page":"692","DOI":"10.1097\/00006324-199910000-00020","article-title":"Rigid contact lens fitting relationships in keratoconus. Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study Group","volume":"76","author":"Edrington TB","year":"1999","journal-title":"Optom Vis Sci"},{"key":"e_1_2_9_22_1","unstructured":"SynergEyes Inc.SynergEyes ClearKone: Fitting Guide & Tips for Achieving Success. Available at:http:\/\/www.synergeyes.com\/documents\/CKFittingGuideRevC.pdf. Accessed November 17 2012."},{"key":"e_1_2_9_23_1","first-page":"200","article-title":"Corneal response to short\u2010term orthokeratology lens wear","volume":"80","author":"Sridharan R","year":"2003","journal-title":"Optom Vis Sci"},{"issue":"2","key":"e_1_2_9_24_1","first-page":"22","article-title":"New technology in contact lens practice","volume":"25","author":"Worp E","year":"2010","journal-title":"Contact Lens Spectrum"},{"key":"e_1_2_9_25_1","doi-asserted-by":"crossref","first-page":"593","DOI":"10.1097\/OPX.0b013e31811ece4a","article-title":"SynergEyes versus soft toric lenses: vision\u2010related quality of life","volume":"84","author":"Lipson MJ","year":"2007","journal-title":"Optom Vis Sci"}],"container-title":["Optometry and Vision Science"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1097\/OPX.0b013e318297da25","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1097\/OPX.0b013e318297da25","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1097\/OPX.0b013e318297da25","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T11:35:11Z","timestamp":1774956911000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1097\/OPX.0b013e318297da25"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013,7]]},"references-count":24,"journal-issue":{"issue":"7","published-print":{"date-parts":[[2013,7]]}},"alternative-id":["10.1097\/OPX.0b013e318297da25"],"URL":"https:\/\/doi.org\/10.1097\/opx.0b013e318297da25","archive":["Portico"],"relation":{},"ISSN":["1040-5488","1538-9235"],"issn-type":[{"value":"1040-5488","type":"print"},{"value":"1538-9235","type":"electronic"}],"subject":[],"published":{"date-parts":[[2013,7]]}}}