A Guide to Clinical Contact Lens Management

Signs, Symptoms, Diagnosis and Management

Academy for Eyecare Excellence™
IN COOPERATION WITH
Centre for Contact Lens Research
Home
Cornea
Limbus
Conjunctiva
Lid
Contact Lens
 
Signs
Symptoms
Contact Us
Click on images to view enlargement
Desiccation – SMILE staining
SMILE Staining - Desiccation

Video: Inferior Smile (Dehydration) Staining

Inferior Smile (Dehydration) Staining

Desiccation (SMILE Staining)

Symptoms

  • None or minor symptoms of dryness/discomfort

Signs

  • Inferior arcuate staining of inferior cornea. Lesion is between 4 and 8 o’clock and is parallel to limbus. Often bilateral and asymmetric

Etiology

  • Localized disruption of the corneal surface as a result of desiccation
  • Often associated with incomplete blinking
  • More common with thin and high water content soft lenses
  • Lens dehydration leads to post-lens tear film elimination and, ultimately, epithelial desiccation

Prevalence

  • Mild degrees are common. Severe forms are infrequent

Differential Diagnosis

Management

  • If staining is severe, then cessation of wear is required with the addition of rewetting drops
  • Refit if persistent or severe to a lower water content material, SiHy material
  • Rewetting Drops
  • May need to reduce wearing time
X

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