title: Intraocular pressure in myopic patients after Worst-Fechner anterior chamber phakic intraocular lens implantation.
abstract: OBJECTIVE
  To assess intraocular pressure measured with a Goldmann tonometer over a period of 1 year after implantation of a Worst-Fechner anterior chamber phakic intraocular lens to correct myopia of -7.00 D or more.
  
  
  METHODS
  We performed a prospective, non-masked study of 100 patients (100 myopic eyes) who had a Worst-Fechner phakic intraocular lens implanted to correct myopia of -7.00 D or greater. Central corneal Goldmann tonometry was performed before surgery and 1, 3, 6, and 12 months after surgery. The influence of different variables was assessed.
  
  
  RESULTS
  IOP showed a significant increase of a mean 2.1 mmHg at 3 months after surgery (P=.001). There was not a statistically significant difference between IOP before surgery and 6 months after PIOL implantation (P=.244) or 1 year after surgery (P=.845). In one eye, the lens was explanted 11 months after surgery because of the presence of ocular hypertension. No variables studied showed a statistically significant difference from before to after surgery.
  
  
  CONCLUSIONS
  Worst-Fechner anterior chamber phakic intraocular lens implantation led to a slight transitory increase of intraocular pressure during the first 3 months after surgery, but returned to preoperative levels by 6 months after implantation.
authors.affiliation: Rahhal Ophthalmology Clinic, Valencia, Spain.
authors.forename: Lucrecia
authors.initials: L
authors.lastname: Aguilar-Valenzuela
authors.forename: Antonio
authors.initials: A
authors.lastname: Lleó-Pérez
authors.forename: Luis
authors.initials: L
authors.lastname: Alonso-Muñoz
authors.forename: Joaquin
authors.initials: J
authors.lastname: Casanova-Izquierdo
authors.forename: Francisco José
authors.initials: FJ
authors.lastname: Pérez-Moltó
authors.forename: Mohamed Saleh
authors.initials: MS
authors.lastname: Rahhal
mesh_terms: D000328:Adult; D000867:Anterior Chamber / Q000033:anatomy & histology / Q000601:surgery*; D005260:Female; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology*; D019654:Lens Implantation, Intraocular; D007908:Lens, Crystalline / Q000502:physiology*; D007910:Lenses, Intraocular; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000601:surgery*; D011183:Postoperative Complications; D011446:Prospective Studies; D011474:Prosthesis Design; D012029:Refraction, Ocular; D014065:Tonometry, Ocular; D014792:Visual Acuity