M. T. Yen

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Chronic progressive external ophthalmoplegia (CPEO) is a mitochondrial myopathy with slowly progressive, often symmetric blepharoptosis and limitation of ocular motility in all directions of gaze. The authors present an unusual case of CPEO that initially presented with the unique features of markedly asymmetric facial weakness and the lack of(More)
Transection of an extraocular muscle can occur from orbital and facial trauma, or as a complication of surgery. The injury can occur either near the muscle insertion or in the muscle belly. Identification of the proximal end of the muscle in the orbit may be difficult, especially if the transection occurs a farther distance from the insertion, and, in these(More)
The human lacrimal gland (LG) and ocular surface contain discrete regions of epithelial cells with specific functions and at different stages of cellular differentiation. Epithelial cells contain cytoskeletal antigens that show a differentiation-dependent pattern of expression. The objective of this study was to characterize the various epithelial cell(More)
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