title: [Functional results after bilateral intrastromal femtosecond laser correction of presbyopia].
abstract: OBJECTIVE
  The purpose of this study was to evaluate the results of bilateral intrastromal femtosecond laser correction of presbyopia (INTRACOR).
  
  
  METHODS
  In a prospective study 17 patients were enrolled who had previously received binocular treatment in a two-step approach. Postoperative (4-8 months) outcomes were compared with a matched control group who had undergone only unilateral surgery of the non-dominant eye (n = 17 patients, 24 months after surgery).
  
  
  RESULTS
  The binocular distance corrected near visual acuity (DCNVA) showed the same median but lower scattering of values after bilateral treatment: 0.10 (median in logMAR) (0.30/- 0.10 min/max) (study) versus 0.10 (0.50/- 0.10) (control). In the study group, however, a higher loss of binocular corrected distance visual acuity (CDVA) was found: 23.5 %, 70.6 %, 5.9 % (0, - 1, - 2 lines) (study) versus 35.3 %, 64.7 % and 0 %, respectively (control).
  
  
  CONCLUSIONS
  Regarding the reduced CDVA INTRACOR should initially only be performed in the non-dominant eye. In selected cases binocular treatment can improve DCNVA; however, careful risk-benefit assessment and informed consent are necessary.
authors: International Vision Correction Research Centre (IVCRC), Universitäts-Augenklinik Heidelberg, Im Neuenheimer Feld 400, 69120, Heidelberg, Deutschland.
authors: R
authors: R
authors: Khoramnia
authors: M P
authors: MP
authors: Holzer
authors: A
authors: A
authors: Fitting
authors: G U
authors: GU
authors: Auffarth
authors: T M
authors: TM
authors: Rabsilber
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003319:Corneal Stroma / Q000601:surgery*; D005260:Female; D006801:Humans; D020731:Keratomileusis, Laser In Situ / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011305:Presbyopia / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D020127:Recovery of Function; D016896:Treatment Outcome; D014786:Vision Disorders / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery*; D014792:Visual Acuity; D055815:Young Adult