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Does Frontalis Sling Surgery for Congenital Ptosis Change the Corneal Topography and Refractive Characteristics Postoperatively?

PURPOSE: To evaluate the effect of frontalis sling surgery for congenital ptosis on corneal curvature and refractive status. METHODS: Prospective study of 60 eyes of 48 patients with severe simple congenital ptosis who underwent surgical correction by frontalis sling surgery. Assessment was done pre...

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Autores principales: Gandhi, Aastha, Mehta, Anuj, Naik, Mayuresh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Dove 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7608483/
https://www.ncbi.nlm.nih.gov/pubmed/33154627
http://dx.doi.org/10.2147/OPTH.S264732
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author Gandhi, Aastha
Mehta, Anuj
Naik, Mayuresh
author_facet Gandhi, Aastha
Mehta, Anuj
Naik, Mayuresh
author_sort Gandhi, Aastha
collection PubMed
description PURPOSE: To evaluate the effect of frontalis sling surgery for congenital ptosis on corneal curvature and refractive status. METHODS: Prospective study of 60 eyes of 48 patients with severe simple congenital ptosis who underwent surgical correction by frontalis sling surgery. Assessment was done pre-operatively and at 1 week, 1 month, 3 months post-operatively by computerized topographer (Shipp Nippon, CT 1000), IOL master (Carl Zeiss, 500), autorefractometer (Unicos URK-800) and AS-OCT (Cirrus HD-OCT). The results were statistically evaluated to analyze any change in visual acuity, refractive status, keratometry, astigmatism and central corneal thickness (CCT). RESULTS: Three months post-operatively, significant reduction of cylindrical power by −0.358 D was observed by refraction with corresponding improvement of mean BCVA by 0.24±0.04 logMAR. Corneal topography showed reduction in astigmatism by −0.47±0.95 D; however, the average keratometry did not undergo a significant change. The mean values of astigmatism by IOL master and topographer were comparable. There was significant steepening of the previously flatter meridian (horizontal meridian, in 63.3% patients) while the steeper meridian remained relatively unchanged. A greater reduction in astigmatism was noticed in children in the age group of 5–10 years. CONCLUSION: Ptosis surgery modifies the corneal curvature, restoring corneal symmetry and reducing astigmatism; thus changing the refractive status of the patient, which needs to be addressed post-operatively to improve the quality of vision. Children with severe ptosis may benefit from being operated at an early age to achieve better astigmatic reduction.
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spelling pubmed-76084832020-11-04 Does Frontalis Sling Surgery for Congenital Ptosis Change the Corneal Topography and Refractive Characteristics Postoperatively? Gandhi, Aastha Mehta, Anuj Naik, Mayuresh Clin Ophthalmol Original Research PURPOSE: To evaluate the effect of frontalis sling surgery for congenital ptosis on corneal curvature and refractive status. METHODS: Prospective study of 60 eyes of 48 patients with severe simple congenital ptosis who underwent surgical correction by frontalis sling surgery. Assessment was done pre-operatively and at 1 week, 1 month, 3 months post-operatively by computerized topographer (Shipp Nippon, CT 1000), IOL master (Carl Zeiss, 500), autorefractometer (Unicos URK-800) and AS-OCT (Cirrus HD-OCT). The results were statistically evaluated to analyze any change in visual acuity, refractive status, keratometry, astigmatism and central corneal thickness (CCT). RESULTS: Three months post-operatively, significant reduction of cylindrical power by −0.358 D was observed by refraction with corresponding improvement of mean BCVA by 0.24±0.04 logMAR. Corneal topography showed reduction in astigmatism by −0.47±0.95 D; however, the average keratometry did not undergo a significant change. The mean values of astigmatism by IOL master and topographer were comparable. There was significant steepening of the previously flatter meridian (horizontal meridian, in 63.3% patients) while the steeper meridian remained relatively unchanged. A greater reduction in astigmatism was noticed in children in the age group of 5–10 years. CONCLUSION: Ptosis surgery modifies the corneal curvature, restoring corneal symmetry and reducing astigmatism; thus changing the refractive status of the patient, which needs to be addressed post-operatively to improve the quality of vision. Children with severe ptosis may benefit from being operated at an early age to achieve better astigmatic reduction. Dove 2020-10-30 /pmc/articles/PMC7608483/ /pubmed/33154627 http://dx.doi.org/10.2147/OPTH.S264732 Text en © 2020 Gandhi et al. http://creativecommons.org/licenses/by-nc/3.0/ This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License (http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms (https://www.dovepress.com/terms.php).
spellingShingle Original Research
Gandhi, Aastha
Mehta, Anuj
Naik, Mayuresh
Does Frontalis Sling Surgery for Congenital Ptosis Change the Corneal Topography and Refractive Characteristics Postoperatively?
title Does Frontalis Sling Surgery for Congenital Ptosis Change the Corneal Topography and Refractive Characteristics Postoperatively?
title_full Does Frontalis Sling Surgery for Congenital Ptosis Change the Corneal Topography and Refractive Characteristics Postoperatively?
title_fullStr Does Frontalis Sling Surgery for Congenital Ptosis Change the Corneal Topography and Refractive Characteristics Postoperatively?
title_full_unstemmed Does Frontalis Sling Surgery for Congenital Ptosis Change the Corneal Topography and Refractive Characteristics Postoperatively?
title_short Does Frontalis Sling Surgery for Congenital Ptosis Change the Corneal Topography and Refractive Characteristics Postoperatively?
title_sort does frontalis sling surgery for congenital ptosis change the corneal topography and refractive characteristics postoperatively?
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7608483/
https://www.ncbi.nlm.nih.gov/pubmed/33154627
http://dx.doi.org/10.2147/OPTH.S264732
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