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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RGP Lens Binding
RGP Lens Binding fluorescein

Binding – RGP

Adherence, lens edge imprint

Symptoms

  • Patient may be asymptomatic
  • Lens removal maybe difficult
  • Spectacle blur following lens removal

Signs

  • Immobile, decentred lens
  • Indentation ring remains when lens is removed
  • Corneal topography may show distortion

Etiology

  • Due to mechanical imprint of immobile GP lens in EW
  • Most common on eye opening after overnight wear
  • May be linked with too little edge clearance

Prevalence

  • Occasional. Rare in daily wear; more likely with EW

Differential Diagnosis

Management

  • Increase lens mobility by reducing overall diameter, changing base curve (flatter or steeper may work) or increase edge clearance
  • Change to DW RGP
  • Advise patient to check for binding each morning
  • Wetting drops on waking to replenish the post-lens tear film may assist

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