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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Tear film instability deposits
Tear film instability deposits

Tear Instability - Non Wetting Lens

Tear break-up time, deposits

Symptoms

  • Patient may report no symptoms
  • Lenses may feel dry or uncomfortable

Signs

  • Drying of lens surface and failure of lens to rewet during blink
  • Prelens tear film breakup < interblink period (e.g. 6 seconds)
  • Lens surface is not smooth on slit lamp evaluation
  • Lens deposition may be present
  • May occur more frequently in those with a poor quality and/or quantity of tears

Etiology

  • Deposition or contamination of lens surface
  • Poor lens production quality, resulting in poor quality surface
  • Poor tear film quality or quantity which may be exacerbated by lid margin disease

Prevalence

  • Common

Differential Diagnosis

Management

  • Replace lens if old and/or deposited
  • If lens is new, consider refitting into a new daily disposable, SiHy material, or improved tear film with lid hygiene, tear supplements, and/or lid massage
  • Reduce wearing time or cease EW
  • GP lenses may need to be remade

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