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Polar Value Analysis of Low to Moderate Astigmatism with Wavefront-Guided Sub-Bowman Keratomileusis
Joint Authors
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-02
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Purpose.
To evaluate the astigmatic outcomes of wavefront-guided sub-Bowman keratomileusis (WFG-SBK) for low to moderate myopic astigmatism.
Methods.
This study enrolled 100 right eyes from 100 patients who underwent WFG-SBK for the correction of myopia and astigmatism.
The polar value method was performed with anterior and posterior corneal astigmatism measured with Scheimpflug camera combined with Placido corneal topography (Sirius, CSO) and refractive astigmatism preoperatively and 1 month, 3 months, and 6 months postoperatively.
Results.
Similar results for surgically induced astigmatism (SIA) and error of the procedure in both anterior corneal astigmatism (ACA) and total ocular astigmatism (TOA).
There was a minor undercorrection of the cylinder in both ACA and TOA.
Posterior corneal astigmatism (PCA) showed no significant change.
Conclusions.
Wavefront-guided SBK could provide good astigmatic outcomes for the correction of low to moderate myopic astigmatism.
The surgical effects were largely attributed to the astigmatic correction of the anterior corneal surface.
Posterior corneal astigmatism remained unchanged even after WFG-SBK for myopic astigmatism.
Polar value analysis can be used to guide adjustments to the treatment cylinder alongside a nomogram designed to optimize postoperative astigmatic outcomes in myopic WFG-SBK.
American Psychological Association (APA)
Yan, Pisong& Du, Zhiyu& Zhang, Yu. 2017. Polar Value Analysis of Low to Moderate Astigmatism with Wavefront-Guided Sub-Bowman Keratomileusis. Journal of Ophthalmology،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1185058
Modern Language Association (MLA)
Yan, Pisong…[et al.]. Polar Value Analysis of Low to Moderate Astigmatism with Wavefront-Guided Sub-Bowman Keratomileusis. Journal of Ophthalmology No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1185058
American Medical Association (AMA)
Yan, Pisong& Du, Zhiyu& Zhang, Yu. Polar Value Analysis of Low to Moderate Astigmatism with Wavefront-Guided Sub-Bowman Keratomileusis. Journal of Ophthalmology. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1185058
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1185058