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Can Fam Physician. 2010 August; 56(8): 775.
PMCID: PMC2920780

Question: Can you identify this condition?

Davin Johnson, MD, Kelly D. Schweitzer, MD, and Sanjay Sharma, MD MSc MBA FRCSC
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A 24-year-old man presents to the after-hours clinic complaining of a foreign body sensation in his left eye. Six hours earlier he was working in his garage and felt a “speck of metal” fly into his eye while hammering a nail. He was not wearing eye protection. On examination the patient’s visual acuity is 6/6 bilaterally. Slit lamp examination of the left eye is shown above.

The most likely diagnosis is

  1. Intraocular foreign body
  2. Rust ring
  3. Corneal foreign body
  4. Conjunctival foreign body

Answer on page 777

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