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Management of Corneal Ectasia after LASIK with Phototherapeutic Keratectomy Combined with Photorefractive Keratectomy and Collagen Cross-Linking
Joint Authors
Zhang, Xiao
Mu, Guo-ying
Zhou, Weiyan
Wang, Hongya
Tian, Mingxia
Cui, Changxia
Li, Xin
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-02-18
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Background.
To evaluate the efficacy of phototherapeutic keratectomy (PTK) combined with photorefractive keratectomy (PRK) and riboflavin with ultraviolet-A collagen cross-linking (CXL), performed sequentially on the same day, in the management of corneal ectasia after LASIK.
Methods.
This retrospective review comprised consecutive patients with corneal ectasia after LASIK.
The patients were administered PTK and PRK on the previous corneal flap, and CXL was given on the same day by the same surgeon.
The main outcome measures included age, sex, uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), spherical equivalent refraction, cylinder equivalent refraction, steep and flat keratometries (K), central corneal thickness (CCT), endothelial cell count, corneal haze, and ectasia stability.
Mean follow-up period was 6, 12, and 24 months.
Results.
Sixteen eyes of twelve patients were included in the study.
Twenty-four months after administration of PTK combined with PRK and CXL, a significant improvement in UDVA was observed.
Mean cylinder equivalent refraction was significantly reduced at 6, 12, and 24 months postoperatively.
However, no significant reduction was observed in spherical equivalent refraction.
A significant reduction in the flat K and steep K values was observed.
No significant change in mean CCT value was observed.
Mean endothelial cell count and morphology were unchanged between preoperative and postoperative patients.
In addition, no obvious corneal haze was observed.
Conclusions.
PTK combined with PRK and CXL on the same day is a safe and effective treatment in improving visual acuity in selected patients with corneal ectasia after LASIK.
American Psychological Association (APA)
Zhou, Weiyan& Wang, Hongya& Zhang, Xiao& Tian, Mingxia& Cui, Changxia& Li, Xin…[et al.]. 2019. Management of Corneal Ectasia after LASIK with Phototherapeutic Keratectomy Combined with Photorefractive Keratectomy and Collagen Cross-Linking. Journal of Ophthalmology،Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1185292
Modern Language Association (MLA)
Zhou, Weiyan…[et al.]. Management of Corneal Ectasia after LASIK with Phototherapeutic Keratectomy Combined with Photorefractive Keratectomy and Collagen Cross-Linking. Journal of Ophthalmology No. 2019 (2019), pp.1-7.
https://search.emarefa.net/detail/BIM-1185292
American Medical Association (AMA)
Zhou, Weiyan& Wang, Hongya& Zhang, Xiao& Tian, Mingxia& Cui, Changxia& Li, Xin…[et al.]. Management of Corneal Ectasia after LASIK with Phototherapeutic Keratectomy Combined with Photorefractive Keratectomy and Collagen Cross-Linking. Journal of Ophthalmology. 2019. Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1185292
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1185292