http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?CMD=search&DB=pubmed

Ophthalmology. 2001 Jul;108(7):1230-5 
Effects of laser in situ keratomileusis on tear production, clearance, and the ocular surface.

Battat L, Macri A, Dursun D, Pflugfelder SC.
Bascom Palmer Eye Institute, University of Miami School of Medicine, Miami, Florida, USA.Excerpts from the full text:

 

 

 - Corneal sensation remained reduced 16 months after LASIK 

 - Conjunctival sensation remained reduced 16 months after LASIK 

 - Tear clearance remained reduced 16 months after LASIK.