Long-term changes and effect of pterygium size on corneal topographic irregularity after recurrent pterygium surgery

Abstract This retrospective observational study compared long-term topographic changes after recurrent- and primary-pterygium surgery depending on pterygium size. Patients who underwent recurrent-pterygium excision between 2002–2013 and age, sex, and pterygium size-matched controls who underwent pri...

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Autores principales:	Takashi Ono, Yosai Mori, Ryohei Nejima, Jinhee Lee, Kentaro Abe, Yuji Nagata, Takuya Iwasaki, Makoto Aihara, Kazunori Miyata
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e2b869dd750b4a25aa8fb071bce9f271
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spelling	oai:doaj.org-article:e2b869dd750b4a25aa8fb071bce9f2712021-12-02T14:59:13ZLong-term changes and effect of pterygium size on corneal topographic irregularity after recurrent pterygium surgery10.1038/s41598-020-65376-42045-2322https://doaj.org/article/e2b869dd750b4a25aa8fb071bce9f2712020-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-65376-4https://doaj.org/toc/2045-2322Abstract This retrospective observational study compared long-term topographic changes after recurrent- and primary-pterygium surgery depending on pterygium size. Patients who underwent recurrent-pterygium excision between 2002–2013 and age, sex, and pterygium size-matched controls who underwent primary-pterygium surgery were included (33 eyes of 33 patients in each group). Pterygium size was graded per advancing edge position: <1/3 of corneal diameter (grade 1), outside the pupil (grade 2), and within the pupillary area (grade 3). Surface asymmetry index (SAI), surface regularity index (SRI) in corneal topography, and uncorrected and best-spectacle-corrected visual acuity were compared before and 1, 3, 6, and 12 months postoperatively. Three, 17, and 13 eyes had grades 1, 2, and 3, respectively. In grade 2, the SAI and SRI were respectively significantly larger at all observation points (p = 0.01, 0.03, 0.02, 0.02, and 0.004) and before and 6 and 12 months postoperatively (p = 0.02, 0.04, and 0.03) in recurrent pterygium. In grade 3, the SAI was significantly larger before and 1, 3, and 12 months postoperatively (p = 0.04, 0.01, 0.01, and 0.02) and the SRI was significantly larger before and 12 months postoperatively (p < 0.001, 0.02) in recurrent pterygium. Corneal irregularity persisted 12 months after recurrent-pterygium surgery compared with that in same-size primary pterygium.Takashi OnoYosai MoriRyohei NejimaJinhee LeeKentaro AbeYuji NagataTakuya IwasakiMakoto AiharaKazunori MiyataNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-6 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Takashi Ono Yosai Mori Ryohei Nejima Jinhee Lee Kentaro Abe Yuji Nagata Takuya Iwasaki Makoto Aihara Kazunori Miyata Long-term changes and effect of pterygium size on corneal topographic irregularity after recurrent pterygium surgery
description	Abstract This retrospective observational study compared long-term topographic changes after recurrent- and primary-pterygium surgery depending on pterygium size. Patients who underwent recurrent-pterygium excision between 2002–2013 and age, sex, and pterygium size-matched controls who underwent primary-pterygium surgery were included (33 eyes of 33 patients in each group). Pterygium size was graded per advancing edge position: <1/3 of corneal diameter (grade 1), outside the pupil (grade 2), and within the pupillary area (grade 3). Surface asymmetry index (SAI), surface regularity index (SRI) in corneal topography, and uncorrected and best-spectacle-corrected visual acuity were compared before and 1, 3, 6, and 12 months postoperatively. Three, 17, and 13 eyes had grades 1, 2, and 3, respectively. In grade 2, the SAI and SRI were respectively significantly larger at all observation points (p = 0.01, 0.03, 0.02, 0.02, and 0.004) and before and 6 and 12 months postoperatively (p = 0.02, 0.04, and 0.03) in recurrent pterygium. In grade 3, the SAI was significantly larger before and 1, 3, and 12 months postoperatively (p = 0.04, 0.01, 0.01, and 0.02) and the SRI was significantly larger before and 12 months postoperatively (p < 0.001, 0.02) in recurrent pterygium. Corneal irregularity persisted 12 months after recurrent-pterygium surgery compared with that in same-size primary pterygium.
format	article
author	Takashi Ono Yosai Mori Ryohei Nejima Jinhee Lee Kentaro Abe Yuji Nagata Takuya Iwasaki Makoto Aihara Kazunori Miyata
author_facet	Takashi Ono Yosai Mori Ryohei Nejima Jinhee Lee Kentaro Abe Yuji Nagata Takuya Iwasaki Makoto Aihara Kazunori Miyata
author_sort	Takashi Ono
title	Long-term changes and effect of pterygium size on corneal topographic irregularity after recurrent pterygium surgery
title_short	Long-term changes and effect of pterygium size on corneal topographic irregularity after recurrent pterygium surgery
title_full	Long-term changes and effect of pterygium size on corneal topographic irregularity after recurrent pterygium surgery
title_fullStr	Long-term changes and effect of pterygium size on corneal topographic irregularity after recurrent pterygium surgery
title_full_unstemmed	Long-term changes and effect of pterygium size on corneal topographic irregularity after recurrent pterygium surgery
title_sort	long-term changes and effect of pterygium size on corneal topographic irregularity after recurrent pterygium surgery
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/e2b869dd750b4a25aa8fb071bce9f271
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Long-term changes and effect of pterygium size on corneal topographic irregularity after recurrent pterygium surgery

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