title: Optic disc and retinal nerve fiber layer analysis with scanning laser tomography after LASIK.
abstract: OBJECTIVE
  To examine whether LASIK induces changes in the optic disc and retinal nerve fiber layer using scanning laser tomography.
  
  
  METHODS
  Prospective, consecutive study of 53 myopic eyes in 38 patients (mean age: 35.7 +/- 10.4 years; range: 22 to 58 years). Preoperative average refractive error was -6.0 +/- 2.4 diopters (D) (spherical equivalent) (range: -2.0 to -10.0 D). Optic disc morphology and retinal nerve fiber layer thickness were evaluated with scanning laser tomography preoperatively and at 7 and 13 months postoperatively.
  
  
  RESULTS
  No statistically significant differences were noted between the pre- and postoperative optic disc and retinal nerve fiber layer measurements.
  
  
  CONCLUSIONS
  Our results suggest that transient extreme elevation of intraocular pressure during LASIK does not affect the optic disc morphology or retinal nerve fiber layer thickness in normal myopic eyes for at least 1 year after surgery.
authors.affiliation: Department of Ophthalmology, University of Tokyo School of Medicine, Tokyo, Japan.
authors.forename: Naoki
authors.initials: N
authors.lastname: Hamada
authors.forename: Tadayoshi
authors.initials: T
authors.lastname: Kaiya
authors.forename: Tetsuro
authors.initials: T
authors.lastname: Oshika
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kato
authors.forename: Goji
authors.initials: G
authors.lastname: Tomita
authors.forename: Satoru
authors.initials: S
authors.lastname: Yamagami
authors.forename: Shiro
authors.initials: S
authors.lastname: Amano
mesh_terms: D000328:Adult; D005500:Follow-Up Studies; D006801:Humans; D020731:Keratomileusis, Laser In Situ; D007834:Lasers; D008875:Middle Aged; D009216:Myopia / Q000601:surgery*; D009898:Optic Disk / Q000033:anatomy & histology*; D011184:Postoperative Period; D011446:Prospective Studies; D012165:Retinal Ganglion Cells / Q000166:cytology*; D014054:Tomography