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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Superficial vascularization
Deep stromal vascularization

Vascularization – Superficial and Deep Stromal

Neovascularization

Symptoms

  • None, but vision may be affected in deep stromal vascularization due to associated opacities – Superficial and Deep Stromal

Signs

  • Ingrowth of vessels in the cornea
  • Usually superficial but can also be deep stromal
  • Generally bilateral presentation
  • Superficial: corneal penetration by vessels continuous with the limbal vessels
  • Deep stromal: Blood vessel growth in the stroma and vessels disappear from view at the limbus

Etiology

  • Due to chronic corneal hypoxia
  • Common sign associated with low Dk/t soft contact lens wear
  • May be history of previous corneal disease, trauma, or infection

Prevalence

  • Rare with modern materials

Differential Diagnosis

Management

  • Consider SiHy lenses or GP lenses
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