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The effect of pterygium surgery on wavefront analysis
BACKGROUND: Pterygium is a common disorder of the ocular surface. It causes vision impairment -usually irregular type astigmatism- through different mechanisms. In addition, it is believed that surgical excision of the pterygium improves visual problems. The appropriate method to investigate irregul...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Medknow Publications & Media Pvt Ltd
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4202504/ https://www.ncbi.nlm.nih.gov/pubmed/25337526 http://dx.doi.org/10.4103/2277-9175.140677 |
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author | Razmjoo, Hasan Vaezi, Mohammad-Hadi Peyman, Alireza Koosha, Nima Mohammadi, Zahra Alavirad, Maryam |
author_facet | Razmjoo, Hasan Vaezi, Mohammad-Hadi Peyman, Alireza Koosha, Nima Mohammadi, Zahra Alavirad, Maryam |
author_sort | Razmjoo, Hasan |
collection | PubMed |
description | BACKGROUND: Pterygium is a common disorder of the ocular surface. It causes vision impairment -usually irregular type astigmatism- through different mechanisms. In addition, it is believed that surgical excision of the pterygium improves visual problems. The appropriate method to investigate irregular astigmatism is using wavefront analysis. This study was aimed to evaluate wavefront analysis pre and post pterygium surgery. MATERIALS AND METHODS: This study was performed on 32 patients who underwent surgical excision of pterygium in January 2012. Data were recorded and compared after pre and postoperative comprehensive ophthalmologic examinations including uncorrected and best corrected visual acuity, Orbscan, wavefront analysis and autorefraction to figure out the effects of surgery on different parameters. RESULTS: Comparison of pre and postoperative parameters showed that surgical treatment of the pterygium improves numerous parameters significantly including uncorrected and best corrected visual acuity, spherical and cylinder refractive error, higher order aberration, quadrafoil (Z440), corneal astigmatism and 3 and 5 mm central zone corneal irregularity (all P-values < 0.0001). In addition, it improves vertical coma (P:0.003) and secondary astigmatism (Z420) (P:0.004). CONCLUSION: It is concluded that surgical excision of the pterygium improves visual acuity, refractive errors and most of the corneal topographic indices and wavefront analysis parameters. |
format | Online Article Text |
id | pubmed-4202504 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Medknow Publications & Media Pvt Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-42025042014-10-21 The effect of pterygium surgery on wavefront analysis Razmjoo, Hasan Vaezi, Mohammad-Hadi Peyman, Alireza Koosha, Nima Mohammadi, Zahra Alavirad, Maryam Adv Biomed Res Original Article BACKGROUND: Pterygium is a common disorder of the ocular surface. It causes vision impairment -usually irregular type astigmatism- through different mechanisms. In addition, it is believed that surgical excision of the pterygium improves visual problems. The appropriate method to investigate irregular astigmatism is using wavefront analysis. This study was aimed to evaluate wavefront analysis pre and post pterygium surgery. MATERIALS AND METHODS: This study was performed on 32 patients who underwent surgical excision of pterygium in January 2012. Data were recorded and compared after pre and postoperative comprehensive ophthalmologic examinations including uncorrected and best corrected visual acuity, Orbscan, wavefront analysis and autorefraction to figure out the effects of surgery on different parameters. RESULTS: Comparison of pre and postoperative parameters showed that surgical treatment of the pterygium improves numerous parameters significantly including uncorrected and best corrected visual acuity, spherical and cylinder refractive error, higher order aberration, quadrafoil (Z440), corneal astigmatism and 3 and 5 mm central zone corneal irregularity (all P-values < 0.0001). In addition, it improves vertical coma (P:0.003) and secondary astigmatism (Z420) (P:0.004). CONCLUSION: It is concluded that surgical excision of the pterygium improves visual acuity, refractive errors and most of the corneal topographic indices and wavefront analysis parameters. Medknow Publications & Media Pvt Ltd 2014-09-23 /pmc/articles/PMC4202504/ /pubmed/25337526 http://dx.doi.org/10.4103/2277-9175.140677 Text en Copyright: © 2014 Razmjoo. http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Original Article Razmjoo, Hasan Vaezi, Mohammad-Hadi Peyman, Alireza Koosha, Nima Mohammadi, Zahra Alavirad, Maryam The effect of pterygium surgery on wavefront analysis |
title | The effect of pterygium surgery on wavefront analysis |
title_full | The effect of pterygium surgery on wavefront analysis |
title_fullStr | The effect of pterygium surgery on wavefront analysis |
title_full_unstemmed | The effect of pterygium surgery on wavefront analysis |
title_short | The effect of pterygium surgery on wavefront analysis |
title_sort | effect of pterygium surgery on wavefront analysis |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4202504/ https://www.ncbi.nlm.nih.gov/pubmed/25337526 http://dx.doi.org/10.4103/2277-9175.140677 |
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