{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T20:42:16Z","timestamp":1786653736520,"version":"build-2736575974"},"reference-count":12,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"4","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2024,4]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To compare the predictive accuracy of Barrett total keratometry (Barrett TK) toric calculator with the measured posterior corneal astigmatism (PCA) by using Pentacam in toric intraocular lens (IOL) power calculation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A prospective analysis was done on 118 eyes requiring toric IOL power implantation. The absolute prediction error of the Barrett TK toric calculator and the measured PCA in the online toric calculator were assessed and compared to the standard Alcon toric calculator (with Barrett toric calculator incorporated).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>The mean absolute prediction error of the online toric calculator (0.32 D) (with Barrett toric calculator incorporated), Barrett TK Toric (0.34 D), and measured PCA of Pentacam in Barrett toric calculator (0.33 D) were found to be similar with no statistically significant difference. Subanalysis in eyes with with-the-rule astigmatism, against-the-rule astigmatism, and oblique astigmatism showed similar results. Alpins analysis showed that all three methods overcorrected corneal astigmatism.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>The Barrett TK toric calculator and the measured PCA of Pentacam in the Barrett toric calculator have similar predictive accuracy to the online toric calculator (with Barrett toric calculator incorporated).<\/jats:p>\n                  <\/jats:sec>","DOI":"10.4103\/ijo.ijo_1386_23","type":"journal-article","created":{"date-parts":[[2024,2,23]],"date-time":"2024-02-23T02:00:22Z","timestamp":1708653622000},"page":"582-586","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":3,"title":["Predictive accuracy of Barrett TK toric calculator compared to measured posterior corneal astigmatism using Pentacam in toric IOL power calculation"],"prefix":"10.4103","volume":"72","author":[{"given":"S","family":"Tamilarasi","sequence":"first","affiliation":[{"name":"Department of Cataract and Refractive Services, The Eye Foundation, Coimbatore, Tamil Nadu, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ashalyne James","family":"Joseph","sequence":"additional","affiliation":[{"name":"Department of Cataract and Refractive Services, The Eye Foundation, Coimbatore, Tamil Nadu, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ramamurthy","family":"Dandapani","sequence":"additional","affiliation":[{"name":"Department of Cataract and Refractive Services, The Eye Foundation, Coimbatore, Tamil Nadu, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","published-online":{"date-parts":[[2024,2,23]]},"reference":[{"key":"R1-20260504","doi-asserted-by":"crossref","first-page":"683","DOI":"10.1007\/s10792-016-0327-z","article-title":"Prevalence of corneal astigmatism before cataract surgery in Indian population","volume":"37","author":"Prasher","year":"2017","journal-title":"Int Ophthalmol"},{"key":"R2-20260504","doi-asserted-by":"crossref","first-page":"394","DOI":"10.3928\/1081597X-20140429-01","article-title":"Evaluation of factors influencing the remaining astigmatism after toric intraocular lens implantation","volume":"30","author":"Hirnschall","year":"2014","journal-title":"J Refract Surg"},{"key":"R3-20260504","doi-asserted-by":"crossref","first-page":"84","DOI":"10.1016\/j.jcrs.2014.04.033","article-title":"Effect of posterior corneal astigmatism on refractive outcomes after toric intraocular lens implantation","volume":"41","author":"Zhang","year":"2015","journal-title":"J Cataract Refract Surg"},{"key":"R4-20260504","doi-asserted-by":"crossref","first-page":"2080","DOI":"10.1016\/j.jcrs.2012.08.036","article-title":"Contribution of posterior corneal astigmatism to total corneal 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astigmatism","volume":"39","author":"Koch","year":"2013","journal-title":"J Cataract Refract Surg"},{"key":"R8-20260504","doi-asserted-by":"crossref","first-page":"1645","DOI":"10.1016\/j.jcrs.2014.01.046","article-title":"Influence of posterior corneal astigmatism on total corneal astigmatism in eyes with moderate to high astigmatism","volume":"40","author":"Savini","year":"2014","journal-title":"J Cataract Refract Surg"},{"key":"R9-20260504","doi-asserted-by":"crossref","first-page":"1325","DOI":"10.1016\/j.ophtha.2018.02.012","article-title":"Comparison of the rotational stability of two toric intraocular lenses in 1273 consecutive eyes","volume":"125","author":"Lee","year":"2018","journal-title":"Ophthalmology"},{"key":"R10-20260504","doi-asserted-by":"crossref","first-page":"2677","DOI":"10.1007\/s00417-019-04443-7","article-title":"Comparison of refractive outcomes using conventional keratometry or total keratometry for IOL power calculation in cataract surgery","volume":"257","author":"Srivannaboon","year":"2019","journal-title":"Graefes Arch Clin Exp Ophthalmol"},{"key":"R11-20260504","first-page":"1511","article-title":"Refractive cylinder outcomes after calculating toric intraocular lens cylinder power using total corneal refractive power","volume":"9","author":"Davison","year":"2015","journal-title":"Clin Ophthalmol"},{"key":"R12-20260504","doi-asserted-by":"crossref","first-page":"699","DOI":"10.3928\/1081597X-20150928-03","article-title":"Comparison of methods to predict residual astigmatism after intraocular lens implantation","volume":"31","author":"Abulafia","year":"2015","journal-title":"J Refract Surg"}],"container-title":["Indian Journal of 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