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KMID : 0360220150560010127
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Journal of the Korean Ophthalmological Society
2015 Volume.56 No. 1 p.127 ~ p.133
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In Vivo Confocal Microscopic Findings of Corneal Tissue in Amiodarone-Induced Vortex Keratopathy
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Lee Jae-Jung
Choi Beom-Seok
Park Young-Min
Lee Jong-Soo
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Abstract
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Purpose: To analyze the morphology of corneal tissue in patients with Amiodarone-induced vortex keratopathy by in vivo confocal microscopy (IVCM).
Case summary: Four eyes of 2 patients with clinically diagnosed Amiodarone-induced vortex keratopathy were examined using corneal topography and IVCM. Cross-sectioned corneal images of the corneal epithelium, Bowman’s layer, stromal layer, Descemet’s membrane, and endothelium were evaluated. Location of corneal deposits examined by conventional slit-lamp microscopy was correlated with findings of corneal topography. The curvature map of corneal topography revealed an unusual irregular astigmatism with generalized mild steepening consistent with the location of the corneal deposits and the elevation map showed the change of corneal elevation according to the corneal deposits. Multiple hyper-reflective whitish dots were found at the corneal epithelial level and some were found at the anterior stromal level. Regarding the corneal endothelial layer, case 1 demonstrated normal corneal endothelial tissue, but case 2 showed several hyper-reflective whitish dots in the endothelium.
Conclusions: In patients with Amiodarone-induced vortex keratopathy, IVCM showed corneal deposits in the corneal epithelium, stroma, and endothelium. Distribution of microdeposits in the corneal tissue caused an irregular astigmatism.
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KEYWORD
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Amiodarone-induced keratopathy, Confocal microscopy, Vortex keratopathy
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