title: Improving Boston type 1 keratoprosthesis procedure: one-touch femtosecond-assisted preparation and centration of donor carrier tissue.
abstract: OBJECTIVE
  We describe a technique to avoid decentration of the visual axis of the Boston type 1 keratoprosthesis (Kpro), performing 2 concentric trephinations with femtosecond laser.
  
  
  METHODS
  Two concentric side cuts were performed in a donor cornea using the 150-kHz Intralase FS laser. Within the same applanation procedure, an 8.5-mm-diameter anterior side cut was performed, followed by a concentric 3-mm-diameter anterior side cut.
  
  
  RESULTS
  The technique was successfully replicated in 7 cases.
  
  
  CONCLUSIONS
  Femtosecond laser-assisted double trephination results in a correctly prepared donor cornea, and in an inner side precisely matched with the prosthesis. At the end of the surgery, the Kpro was correctly centered.
authors: 1 Ophthalmology Unit, Misericordia e Dolce Hospital, Prato - Italy.
authors: Alex
authors: A
authors: Malandrini
authors: Angelo
authors: A
authors: Balestrazzi
authors: Annalisa
authors: A
authors: Canovetti
authors: Francesca
authors: F
authors: Rossi
authors: Letizia
authors: L
authors: Cortesini
authors: Chiara
authors: C
authors: Lenzetti
authors: Roberto
authors: R
authors: Pini
authors: Luca
authors: L
authors: Menabuoni
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001187:Artificial Organs; D003315:Cornea; D003316:Corneal Diseases / Q000601:surgery*; D005260:Female; D006801:Humans; D053685:Laser Therapy / Q000379:methods*; D008297:Male; D033401:Microscopy, Acoustic; D008875:Middle Aged; D011446:Prospective Studies; D019919:Prosthesis Implantation / Q000379:methods*; D014019:Tissue Donors; D041623:Tomography, Optical Coherence; D014792:Visual Acuity / Q000502:physiology