Astigmatic changes following pterygium removal: Comparison of 5 different methods
Aims: To investigate the effect of surgery type on the postoperative astigmatism in pterygium surgery. Settings and Design: Retrospective comparative clinical trial. Materials and Methods: Data of 240 eyes that underwent pterygium excision were investigated. Following removal of the pterygium, patie...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2013-01-01
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| Series: | Indian Journal of Ophthalmology |
| Subjects: | |
| Online Access: | http://www.ijo.in/article.asp?issn=0301-4738;year=2013;volume=61;issue=3;spage=104;epage=108;aulast=Altan-Yaycioglu |
| _version_ | 1818391696427188224 |
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| author | Rana Altan-Yaycioglu Cem Kucukerdonmez Aylin Karalezli Fatma Corak Yonca A Akova |
| author_facet | Rana Altan-Yaycioglu Cem Kucukerdonmez Aylin Karalezli Fatma Corak Yonca A Akova |
| author_sort | Rana Altan-Yaycioglu |
| collection | DOAJ |
| description | Aims: To investigate the effect of surgery type on the postoperative astigmatism in pterygium surgery. Settings and Design: Retrospective comparative clinical trial. Materials and Methods: Data of 240 eyes that underwent pterygium excision were investigated. Following removal of the pterygium, patients underwent 5 different types of surgeries: Conjunctival autograft with sutures (CAG-s) or fibrin glue (CAG-g), conjunctival rotational flap (CRF), or amniotic membrane transplantation with either suture (AMT-s) or with glue (AMT-g). The preoperative and postoperative keratometric measurements, evaluated using an automated keratorefractometer, were noted. Statistical Analysis: The overall changes in BCVA and astigmatic degree were evaluated using Wilcoxon signed rank test. The difference in astigmatic values between groups was calculated using one way analysis of variance (ANOVA). Results: The most commonly performed procedure was CAG-s (N = 115), followed by CAG-g (N = 53), CRF (N = 47), AMT-s (N = 15), and AMT-g (N = 10). Following surgery, astigmatic values decreased from 3.47 ± 2.50 D to 1.29 ± 1.07 D (P < 0.001, paired t test). The changes in astigmatism was significantly related to the preoperative size of the pterygium (ρ = 3.464, P = 0.005). The postoperative astigmatism correlated with preoperative astigmatism (ρ = 0.351, P < 0.001, Spearman correlation analysis). The changes in astigmatic values was not related to the method of surgery (P = 0.055, ANOVA). Conclusion: Pterygium results in high corneal astigmatism, which decreases to an acceptable level following excision. According to our study, the type of grafting as CAG, CRF or AMT or the use of suture or glue to fixate the graft does not have a significant effect on the change in astigmatism degree. |
| first_indexed | 2024-12-14T05:17:38Z |
| format | Article |
| id | doaj.art-85857aa9c65c45d3b53516e33c847e33 |
| institution | Directory Open Access Journal |
| issn | 0301-4738 1998-3689 |
| language | English |
| last_indexed | 2024-12-14T05:17:38Z |
| publishDate | 2013-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Indian Journal of Ophthalmology |
| spelling | doaj.art-85857aa9c65c45d3b53516e33c847e332022-12-21T23:15:46ZengWolters Kluwer Medknow PublicationsIndian Journal of Ophthalmology0301-47381998-36892013-01-0161310410810.4103/0301-4738.109379Astigmatic changes following pterygium removal: Comparison of 5 different methodsRana Altan-YayciogluCem KucukerdonmezAylin KaralezliFatma CorakYonca A AkovaAims: To investigate the effect of surgery type on the postoperative astigmatism in pterygium surgery. Settings and Design: Retrospective comparative clinical trial. Materials and Methods: Data of 240 eyes that underwent pterygium excision were investigated. Following removal of the pterygium, patients underwent 5 different types of surgeries: Conjunctival autograft with sutures (CAG-s) or fibrin glue (CAG-g), conjunctival rotational flap (CRF), or amniotic membrane transplantation with either suture (AMT-s) or with glue (AMT-g). The preoperative and postoperative keratometric measurements, evaluated using an automated keratorefractometer, were noted. Statistical Analysis: The overall changes in BCVA and astigmatic degree were evaluated using Wilcoxon signed rank test. The difference in astigmatic values between groups was calculated using one way analysis of variance (ANOVA). Results: The most commonly performed procedure was CAG-s (N = 115), followed by CAG-g (N = 53), CRF (N = 47), AMT-s (N = 15), and AMT-g (N = 10). Following surgery, astigmatic values decreased from 3.47 ± 2.50 D to 1.29 ± 1.07 D (P < 0.001, paired t test). The changes in astigmatism was significantly related to the preoperative size of the pterygium (ρ = 3.464, P = 0.005). The postoperative astigmatism correlated with preoperative astigmatism (ρ = 0.351, P < 0.001, Spearman correlation analysis). The changes in astigmatic values was not related to the method of surgery (P = 0.055, ANOVA). Conclusion: Pterygium results in high corneal astigmatism, which decreases to an acceptable level following excision. According to our study, the type of grafting as CAG, CRF or AMT or the use of suture or glue to fixate the graft does not have a significant effect on the change in astigmatism degree.http://www.ijo.in/article.asp?issn=0301-4738;year=2013;volume=61;issue=3;spage=104;epage=108;aulast=Altan-YayciogluHumphrey field analyzerisopropyl unoprostonemicroperimetryretinitis pigmentosaColor visionfarnsworth-munsell 100 hue testmultiple sclerosispattern visual evoked potentialsAmniotic membraneastigmatismautograftingfibrin tissue adhesivepterygiumsutures |
| spellingShingle | Rana Altan-Yaycioglu Cem Kucukerdonmez Aylin Karalezli Fatma Corak Yonca A Akova Astigmatic changes following pterygium removal: Comparison of 5 different methods Indian Journal of Ophthalmology Humphrey field analyzer isopropyl unoprostone microperimetry retinitis pigmentosa Color vision farnsworth-munsell 100 hue test multiple sclerosis pattern visual evoked potentials Amniotic membrane astigmatism autografting fibrin tissue adhesive pterygium sutures |
| title | Astigmatic changes following pterygium removal: Comparison of 5 different methods |
| title_full | Astigmatic changes following pterygium removal: Comparison of 5 different methods |
| title_fullStr | Astigmatic changes following pterygium removal: Comparison of 5 different methods |
| title_full_unstemmed | Astigmatic changes following pterygium removal: Comparison of 5 different methods |
| title_short | Astigmatic changes following pterygium removal: Comparison of 5 different methods |
| title_sort | astigmatic changes following pterygium removal comparison of 5 different methods |
| topic | Humphrey field analyzer isopropyl unoprostone microperimetry retinitis pigmentosa Color vision farnsworth-munsell 100 hue test multiple sclerosis pattern visual evoked potentials Amniotic membrane astigmatism autografting fibrin tissue adhesive pterygium sutures |
| url | http://www.ijo.in/article.asp?issn=0301-4738;year=2013;volume=61;issue=3;spage=104;epage=108;aulast=Altan-Yaycioglu |
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