title: Evaluation of tear film following Intacs for myopia.
abstract: OBJECTIVE
  To evaluate the effect of intrastromal corneal ring segments (Intacs, Keravision) placement on the tear film quality as a measure of dry eye status.
  
  
  METHODS
  Seventeen eyes of ten patients underwent Intacs placement for the correction of myopia with spherical equivalent refractions ranging from -1.75 to -3.25 D (mean, -2.43 +/- 0.56 D). Dry eye grade values were measured preoperatively and at 1 day, 1 week, and 1 month postoperatively using the Kowa-DR-1 interferometer.
  
  
  RESULTS
  Preoperatively, the 17 eyes had a mean dry eye grade of 2.18 +/- 0.39 (range, 2 to 3). One day postoperatively, the 14 eyes measured had a mean dry eye grade of 2.64 +/- 0.63 (range, 2 to 4; P = .03). At 1 week the 17 eyes had a mean dry eye grade of 2.41 +/- 0.71 (range, 2 to 4; P = .25) and at 1 month, 2.18 +/- 0.39 (range, 2 to 3; P = .75).
  
  
  CONCLUSIONS
  There was transient dry eye following Intacs placement, but the tear film quality was restored within 1 week of surgery.
authors.affiliation: Jules Stein Eye Institute, UCLA Department of Ophthalmology, Los Angeles, CA 90095, USA.
authors.forename: Daniel
authors.initials: D
authors.lastname: Kessler
authors.forename: Ayman F
authors.initials: AF
authors.lastname: El-Shiaty
authors.forename: Brian S Boxer
authors.initials: BS
authors.lastname: Wachler
mesh_terms: D000328:Adult; D003319:Corneal Stroma / Q000503:physiopathology / Q000601:surgery*; D015352:Dry Eye Syndromes / Q000503:physiopathology; D005260:Female; D006801:Humans; D008297:Male; D009216:Myopia / Q000503:physiopathology / Q000601:surgery*; D011183:Postoperative Complications / Q000503:physiopathology; D019736:Prostheses and Implants; D019919:Prosthesis Implantation; D012189:Retrospective Studies; D013666:Tears / Q000378:metabolism*