{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T04:09:05Z","timestamp":1790222945093,"version":"4.1.0"},"reference-count":26,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"Suppl 5","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2024,11]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose:<\/jats:title>\n                    <jats:p>To study the effect of corneal white-to-white diameter on Pentacam Scheimpflug cornea tomography and Corvis ST corneal visualization Scheimpflug technology parameters in myopic eyes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>In this retrospective cross-sectional study, 190 eyes of 190 Chinese myopic patients (spherical equivalent range: \u22121.25 D to \u221211.00 D) assessed for refractive surgery using Pentacam and Corvis ST devices were included. Patients were divided into groups based on corneal diameter: group A &lt;12 mm, and group B \u226512 mm. Age, gender, spherical equivalent, Pentacam variables, and Corvis ST variables were collected. Statistical analysis was performed using IBM SPSS Statistics (Version 28.0).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>There were 110 patients in group A and 80 patients in group B, with no statistically significant difference in age, gender, or spherical equivalence. For Pentacam data, group A had significantly higher Belin\/Ambrosio Enhanced Ectasia Display (BAD-D) scores than group B (0.88 vs. 0.44) and pachymetric progression index (minimum, average, and maximum), and steeper front keratometric values, whereas group B had larger anterior chamber depth and maximum Ambrosio-relational thickness (ARTmax) (462.54 vs. 503.93). BAD-D indices, pachymetric progression indices, and front keratometric values had negative correlations with corneal diameter, whereas ARTmax and back keratometric values had positive correlations. For Corvis ST data, group A had a significantly higher corneal biomechanical index (CBI) (negatively correlated) while group B had a higher Ambrosio relational thickness to the horizontal profile (ARTh) (473.60 vs. 570.78) (positively correlated).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Corneal diameter influences both Pentacam and Corvis ST parameters, with smaller corneal diameters having a higher BAD-D and a lower ARTmax and ARTh. In addition, this is the first study to report a correlation between posterior surface corneal power and corneal diameter. As refractive surgery evaluation relies on these parameters, taking corneal diameter into account would improve both sensitivity and specificity in pre-refractive surgery screening for ectasia\/keratoconus.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.4103\/ijo.ijo_933_24","type":"journal-article","created":{"date-parts":[[2025,10,23]],"date-time":"2025-10-23T16:01:19Z","timestamp":1761235279000},"page":"S763-S775","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":2,"title":["Pentacam and Corvis ST findings in myopic Chinese patients with different corneal diameters in Singapore"],"prefix":"10.4103","volume":"72","author":[{"given":"Elizabeth Wen Ling","family":"Lim","sequence":"first","affiliation":[{"name":"Cornea and External Eye Disease Department, Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hla Myint","family":"Htoon","sequence":"additional","affiliation":[{"name":"Cornea Department, Singapore Eye Research Institute, 20 College Rd, Level 6 Discovery Tower, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peng Yi","family":"Tan","sequence":"additional","affiliation":[{"name":"Cornea and External Eye Disease Department, Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcus","family":"Ang","sequence":"additional","affiliation":[{"name":"Cornea and External Eye Disease Department, Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore"},{"name":"Cornea Department, Singapore Eye Research Institute, 20 College Rd, Level 6 Discovery Tower, Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jodhbir S","family":"Mehta","sequence":"additional","affiliation":[{"name":"Cornea and External Eye Disease Department, Singapore National Eye Centre, 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