1. Anterior segment optical coherence tomography for superficial keratectomy
- Author
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Zi-wen Wang, Xiao-fang Yin, Chun-xiao Wang, Hui-zhen Wang, and Shi-you Zhou
- Subjects
Anterior segment optical coherence tomography ,Corneal opacity ,Superficial keratectomy ,Abnormal hyper-reflective signals ,Cornea thickness ,Medicine (General) ,R5-920 - Abstract
Purpose: To report the use of anterior segment optical coherence tomography (AS-OCT) for superficial keratectomy (SK) in anterior corneal opacity. Methods: The characteristics of 43 eyes (39 patients) with various lesions responsible for anterior corneal opacity were included in this retrospective non-comparative study. AS-OCT was performed on all eyes before surgery. The thickness of corneal opacity and the underlying healthy stroma were measured. SK was performed on each individual. Results: Four types of anterior corneal opacity were evaluated, including corneal degeneration (26/43), Reis-Bücklers corneal dystrophy (8/43), alkali burn (1/43) and corneal tumors (8/43). Based on AS-OCT images, all eyes showed abnormal hyper-reflective signals in the superficial cornea to less than one-third of the normal corneal thickness in the deepest corneal opacity. All 43 eyes underwent an SK procedure. In addition, 1 eye with alkali burns and 7 eyes with corneal tumors were combined with amniotic membrane transplantation. All eyes restored transparency without significant complications. Conclusion: AS-OCT is a valuable method for objective preoperative and noninvasive assessments of anterior corneal opacities and is useful for guiding SK.
- Published
- 2024
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