THE 20-year-old son of MediaCorp artists Edmund Chen and Xiang Yun underwent a cornea transplant recently after a contact lens infection six years ago had badly affected vision in his left eye.
But unlike a traditional operation to replace the entire cornea, Mr Chen Yi Xi, like more and more eye patients, opted for a partial cornea transplant. He did a procedure called anterior lamellar keratoplasty (ALK), which involves removing the front layers of the cornea and replacing them with donor tissue.
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