title: Calibration and validation of nine objective vision screeners with contact lens-induced anisometropia.
abstract: OBJECTIVE
  New objective photoscreeners are emerging with encouraging national guidelines and pediatric providers can be reimbursed for photoscreening.
  
  
  METHODS
  Nine objective screeners were applied to two emmetropic subjects with or without known power contact lenses to induce spherical and cylindrical anisometropia close to American Association for Pediatric Ophthalmology and Strabismus (AAPOS) thresholds.
  
  
  RESULTS
  The screeners produced near linear pupil crescents and estimated refractions for induced anisometropia. Most performed well with AAPOS 2003 validation; however, the iPhone (Apple, Cupertino, CA) was too sensitive, whereas the remote autorefractors using Vision in Preschoolers Study criteria were less sensitive.
  
  
  CONCLUSIONS
  The new, interpreted objective screeners appear valid for detection of anismetropia.
authors.affiliation: Ophthalmic Associates, PC, Anchorage, Alaska, USA. eyedoc@alaska.net
authors.forename: Robert W
authors.initials: RW
authors.lastname: Arnold
authors.forename: Bethanne
authors.initials: B
authors.lastname: Davis
authors.forename: Laura E
authors.initials: LE
authors.lastname: Arnold
authors.forename: Kayla S
authors.initials: KS
authors.lastname: Rowe
authors.forename: Jodi M
authors.initials: JM
authors.lastname: Davis
mesh_terms: D000293:Adolescent; D015858:Anisometropia / Q000175:diagnosis* / Q000209:etiology*; D002138:Calibration; D003261:Contact Lenses / Q000009:adverse effects*; D005260:Female; D006801:Humans; D015203:Reproducibility of Results; D015351:Vision Screening / Q000592:standards*; D014792:Visual Acuity