title: Inflammatory and mechanical complications associated with 3 years of up to 30 nights of continuous wear of lotrafilcon A silicone hydrogel lenses.
abstract: OBJECTIVE
  To report the ocular complications occurring during a 3-year clinical trial of subjects wearing lotrafilcon A silicone hydrogel lenses for up to 30 nights of continuous wear.
  
  
  METHODS
  Nineteen sites enrolled 317 subjects (286 current wearers and 31 new wearers), who were dispensed lotrafilcon A lenses with 3 years of follow-up.
  
  
  RESULTS
  By the 1-month visit, continuous wear of up to 30 nights was recommended for 87% of subjects. The 27 lens-related adverse events included 15 (2.4%) eyes in year 1, seven (1.3%) eyes in year 2, and five (0.8%) eyes in year 3. Lens-related inflammatory events involved 12 (1.9%) eyes in year 1 and five (0.8%) eyes each in years 2 and 3. One third of the inflammatory events occurred in the first 3 months. Mechanical events included two superior epithelial arcuate lesions and one case of bilateral contact lens papillary conjunctivitis in years 1 and 2. No subjects experienced microbial keratitis during the 3-year trial. Two subjects with events discontinued from the trial.
  
  
  CONCLUSIONS
  These results show that the rate of contact lens adverse events occurring with lotrafilcon A is low in this cohort, with the highest likelihood occurring during the first 3 months of the study. There was a decrease in the rate of events during the later years of the study. Although clinicians should understand the likelihood of adverse inflammatory and mechanical events and their possible recurrence, the rate of these events may be lower in practice than previously reported.
authors.affiliation: University of Connecticut Health Center, Farmington, CT, USA.
authors.forename: Peter
authors.initials: P
authors.lastname: Donshik
authors.forename: Bill
authors.initials: B
authors.lastname: Long
authors.forename: Sally M
authors.initials: SM
authors.lastname: Dillehay
authors.forename: Peter
authors.initials: P
authors.lastname: Bergenske
authors.forename: Joseph T
authors.initials: JT
authors.lastname: Barr
authors.forename: Glenda
authors.initials: G
authors.lastname: Secor
authors.forename: John
authors.initials: J
authors.lastname: Yoakum
authors.forename: Robin L
authors.initials: RL
authors.lastname: Chalmers
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D003228:Conjunctiva / Q000473:pathology*; D003231:Conjunctivitis / Q000453:epidemiology / Q000209:etiology* / Q000473:pathology; D003262:Contact Lenses, Extended-Wear / Q000009:adverse effects*; D003315:Cornea / Q000473:pathology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D020100:Hydrogels / Q000009:adverse effects*; D015994:Incidence; D007634:Keratitis / Q000453:epidemiology / Q000209:etiology* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012828:Silicones / Q000009:adverse effects*; D013997:Time Factors; D014481:United States / Q000453:epidemiology; D005466:Fluorocarbons
chemical_list: D020100:Hydrogels; D012828:Silicones; C481129:lotrafilcon A; D005466:Fluorocarbons