title: Controlling blepharospasm effect during applanation tonometry using the Volk SuperField Lid Lens Adapter.
abstract: OBJECTIVE
  To describe a practical clinical technique that can be used to control the effect of blepharospasm during applanation tonometry.
  
  
  METHODS
  The Volk Superfield NC Lid Lens Adapter is used to keep the eye open and prevent the squeezing effect of orbicularis oculi in blepharospasm.
  
  
  RESULTS
  This helpful tool can be used when blepharospasm becomes a problem that interferes with accurate intraocular pressure measurement.
  
  
  CONCLUSIONS
  The technique is potentially useful and relatively easy to perform.
authors.affiliation: Ophtalmology Department, Worcestershire Royal Hospital, Worcester, UK. basharmohammed22@hotmail.com
authors.forename: B R
authors.initials: BR
authors.lastname: Mohammed
authors.forename: S R
authors.initials: SR
authors.lastname: Perry
mesh_terms: D001764:Blepharospasm / Q000517:prevention & control*; D006801:Humans; D007429:Intraocular Pressure; D007909:Lenses; D014065:Tonometry, Ocular / Q000379:methods*