A Guide to Clinical Contact Lens Management

Signs, Symptoms, Diagnosis and Management

Academy for Eyecare Excellence™
IN COOPERATION WITH
Centre for Contact Lens Research
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Soft Contact Lens Binding

Binding – Soft Contact Lens

Symptoms

  • None to difficulty in removing lens
  • Blurred vision

Signs

  • Lack of lens movement with blinking
  • Colored post-lens tear film reflection (see image)
  • The appearance of colored or striate patterns in the post-lens tear film reflection indicates a thinned and aqueous-depleted post-lens tear layer

Etiology

  • Static post-lens tear layer and binding of soft lens
  • May arise with hypotonic tear film or excessive evaporation from lens surface
  • Occurs with eye closure, excessive tearing, exposure to a fresh water environment (e.g. showering, swimming)
  • Commonly observed soon after lens insertion
  • Implicated in the contact lens acute red eye (CLARE)

Prevalence

  • Common in EW, occasional in DW
  • Low to moderate significance

Differential Diagnosis

Management

  • Fit a looser lens if movement remains minimal after some time of wear
  • Avoid predisposing environmental factors
  • Wetting drops on waking to replenish the post-lens tear film

Alcon Vision Care is uniquely poised to serve every contact lens wearer by addressing the full life cycle of their needs.