1. Three-Dimensional Optical Coherence Tomography-Guided Phototherapeutic Keratectomy for Granular Corneal Dystrophy

    Purpose: To describe the potential use of three-dimensional optical coherence tomography (OCT)-guided phototherapeutic keratectomy (PTK) for granular corneal dystrophy. Design: Investigative case report. Methods: Three-dimensional volume data of 1310-nm high-speed swept-source OCT was used to simulate the effect of PTK performed for the removal of corneal opacity in a patient with granular corneal dystrophy. Results: The OCT projection view was used to visualize the reduction of the area of the opacity with progressively deeper simulated ablation to determine the appropriate ablation depth. The results of the actual PTK corresponded well with the preoperative evaluation data. Conclusion: Three-dimensional OCT allows ...

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