Unilateral red eye

Trauma

1. Obvious open globe^
2. No obvious open globe
   1. Epithelial defect
      1. Corneal abrasion
      2. Corneal ulcer^
      3. Caustic keratoconjunctivitis^^
      4. Occult open globe^
         1. (positive Sidel's)
   2. No defect
      1. Subconjunct hem
      2. Traumatic iritis
      3. Hypema^
         1. (?occult open globe)
      4. Endophthalmitis^
         1. (old occult open globe)

Nontraumatic

1. Epithelial defect
   1. Corneal abrasion
   2. Corneal ulcer^ (above)
   3. HSV conjunct (dendrite)
   4. Corneal erosion
      1. (morning pain)
   5. UV/welders keratitis
      1. (SPK)
   6. Scleral penetration^
2. No defect
   1. No pain relief w/ tropicamide
      1. Acute angle glaucoma^
         1. dilated
         2. closed angle
         3. inc pressure
      2. Nontraumatic Iritis
      3. Scleritis^
         1. (localized; no move Q-tip)
      4. Anterior uveitis
         1. (hypopyon, cilliary flush)
   2. No pain/pain relief w/ tropicamide
      1. Foreign body
      2. Conjunctivitis
         1. Viral
         2. Bacterial^
            1. (purulent-->?GC)
         3. Allergic
         4. Contact
         5. Toxic
         6. Chlamydial
      3. Keratoconjunctivits
      4. Episcleritis
         1. (localized; move w/ Q-tip)
   3. Non-uptake finding (no pain/pain relief w/ tropicamd)
      1. Subconjunct hemorr
      2. Inflamed pingueculum
      3. Inflamed pterygium
      4. Keratoconus (protrude)

^Emergent diagnosises

^^Critical diagnosises

See Also

• Corneal Abrasion vs Ulcer
• Red Eye (Unilateral) 2
• Red Eye (Bilateral)
• Red Eye (by Sx)

Source

3/20/06 DONALDSON (adapted from Rosen, WMS Practic Guidelines 2000)