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Eye Glue Could Improve Safety of LASIK Surgery

Posted on 9/17/2012 11:21:46 AM By LiveScience
  

A new glue designed to seal flaps in the cornea after eye surgery could help improve the safety of laser vision corrective surgeries such as LASIK. Typically, during LASIK, a flap is cut in the cornea so that a laser can remove corneal tissue, and the hinged flap is then returned to its original position and held in place with nothing but surface tension. However, if the eye is hit with blunt force trauma before the cut heals, the flap can peel open again, leading to contamination inside the cornea that can require immediate medical attention. In a new study, published in the journal Investigative Ophthalmology & Visual Science, researchers investigated whether this problem could be addressed with a type of glue currently used in cataract surgery. The glue is made from fibrinogen and riboflavin — a protein produced in the liver and a type of B vitamin, respectively. The substance is nontoxic, biodegradable, and does not leave a cloudy scar. The researchers successfully used the glue to seal laser-cut flaps in corneas removed from dogfish sharks and rabbits, and they say the glue has the potential to bond with other body tissues that are similar in chemical and molecular composition to the cornea.

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