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LASIK hinge position may influence dry eye

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SAN DIEGO — Using a nasal-hinged LASIK flap instead of a superior-hinged flap may preserve corneal sensation and reduce dry eye complaints in patients after surgery. This new theory on the effect of flap orientation on corneal sensation was presented here during the microkeratome section of this year’s American Society of Cataract and Refractive Surgery meeting.

Eric Donnenfeld, MD, presented results of a study of 52 patients who underwent bilateral LASIK using a Hansatome microkeratome (Bausch & Lomb) in one eye to make a superior-hinged flap and an Amadeus microkeratome (Allergan) in the other eye to make a nasal-hinged flap.

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