Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 8/27/2025

Corneal Abrasion Diagnosis and Assessment

Examination Technique and Findings

  • The size, shape, and location of the abrasion can be accurately assessed using Wood's lamp examination technique 1
  • The depth of the abrasion can be assessed by the intensity of the staining 1
  • Pooling of fluorescein in areas of corneal thinning must be differentiated from actual epithelial staining 1

Additional Assessment and Red Flags

  • Assess for any linear pattern of abrasion which might indicate a foreign body under the eyelid 1
  • Evaluate for any stromal infiltration which could indicate infection rather than simple abrasion 1
  • Check for anterior chamber reaction which may be present with more significant abrasions 1
  • Deep stromal involvement or infiltrates may indicate infection rather than simple abrasion 2
  • Hypopyon (pus in anterior chamber) suggests infectious keratitis requiring immediate treatment 1