{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,10]],"date-time":"2026-04-10T19:01:05Z","timestamp":1775847665411,"version":"3.50.1"},"reference-count":27,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2024,9,29]],"date-time":"2024-09-29T00:00:00Z","timestamp":1727568000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Life"],"abstract":"<jats:p>Background: The utilities of anterior segment optical coherence tomography (AS-OCT) for characterization, differential diagnosis, postoperative monitoring, and evaluation\/comparison of surgical techniques in pterygium are described. Through AS-OCT, it is also possible to study the corneal astigmatic effect of pterygium. Our purpose is to study the associations between the anatomical characteristics of pterygium and the corneal topography through AS-OCT. Methods: Fifty eyes with primary pterygium in a tertiary hospital were evaluated before surgery by measuring 10 anatomical variables of pterygium and 13 topographic variables using AS-OCT (Casia 2; Tomey Corp., Nagoya, Japan). Statistical analysis was used to study the association between them. Results: Pterygium classified as flat pattern exhibited lower preoperative values of flat keratometry (K1), real flat keratometry (K1r), average keratometry (AvgK), and real average keratometry (AvgKr) compared to nodular ones. The flat pattern showed greater cylinder (CYL) and real cylinder (CLYr) values. The horizontal corneal invasion proportionally increased CYL and CYLr. Overall, larger anatomical pterygium measurements (limbus thickness (LimbusT), central pterygium thickness (CentreT), head pterygium thickness (HeadT), epithelial thickness at 1 mm (EpitT1mm), stromal thickness at 1 mm (stromT1mm), total thickness at 1 mm (TotalT1mm), total thickness at 2 mm (TotalT2mm), and total thickness at 3 mm (TotalT3mm)) resulted in lower anterior K1, K1r, AvgK, and AvgKr, and posterior K1 and AvgK values. CentreT was greater in astigmatisms against the rule than in oblique ones. Conclusions: This study demonstrates associations between preoperative topography and the NF (nodular or flat) classification of pterygium and its anatomical measurements assessed by AS-OCT.<\/jats:p>","DOI":"10.3390\/life14101245","type":"journal-article","created":{"date-parts":[[2024,9,30]],"date-time":"2024-09-30T03:12:28Z","timestamp":1727665948000},"page":"1245","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Association between Tomographic Characteristics of Pterygium and Preoperative Anterior and Posterior Topography Measured by Anterior Segment Optical Coherence Tomography"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9126-7944","authenticated-orcid":false,"given":"Marina","family":"Aguilar-Gonz\u00e1lez","sequence":"first","affiliation":[{"name":"Unit of Cornea and Anterior Eye Diseases, Fundaci\u00f3n de Oftalmolog\u00eda M\u00e9dica (FOM), C\/P\u00edo Baroja 12, 46015 Valencia, Spain"},{"name":"Hospital de Manises, Av. de la Generalitat Valenciana 50, 46940 Manises, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0809-8279","authenticated-orcid":false,"given":"Enrique","family":"Espa\u00f1a-Gregori","sequence":"additional","affiliation":[{"name":"Hospital Universitario y Polit\u00e9cnico La Fe, Av. Fernando Abril Martorell 106, 46026 Valencia, Spain"},{"name":"Department of Surgery, Ophthalmology, Universitat de Valencia, Avenida Blasco Ib\u00e1\u00f1ez 15, 46010 Valencia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2355-8029","authenticated-orcid":false,"given":"Isabel","family":"Pascual-Camps","sequence":"additional","affiliation":[{"name":"Hospital Universitario y Polit\u00e9cnico La Fe, Av. Fernando Abril Martorell 106, 46026 Valencia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0118-7837","authenticated-orcid":false,"given":"M. Dolores","family":"Pinazo-Dur\u00e1n","sequence":"additional","affiliation":[{"name":"Department of Surgery, Ophthalmology, Universitat de Valencia, Avenida Blasco Ib\u00e1\u00f1ez 15, 46010 Valencia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5992-5006","authenticated-orcid":false,"given":"Cristina","family":"Peris-Mart\u00ednez","sequence":"additional","affiliation":[{"name":"Unit of Cornea and Anterior Eye Diseases, Fundaci\u00f3n de Oftalmolog\u00eda M\u00e9dica (FOM), C\/P\u00edo Baroja 12, 46015 Valencia, Spain"},{"name":"Department of Surgery, Ophthalmology, Universitat de Valencia, Avenida Blasco Ib\u00e1\u00f1ez 15, 46010 Valencia, Spain"},{"name":"Avi\u00f1\u00f3 Peris Eye Clinic, Avenida del Oeste 34, 46001 Valencia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,9,29]]},"reference":[{"key":"ref_1","unstructured":"Pascual Camps, I., Espa\u00f1a Gregori, E., and Bort Mart\u00ed, M.\u00c1. 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