Template:Corneal abrasion vs ulcer
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Corneal abrasion vs. corneal ulcer
| Characteristic | Corneal abrasion | Corneal ulcer |
| History | *Acute pain immediately after injury | *Delayed pain frequently 2-3 days or more after initial event |
| Lesion viewable on fluorescein exam | *Yes | *Yes |
| Lesion viewable on white light exam | *No | *Yes |
| Lesion morphology | *Frequently linear, punctate, patterned, and/or irregular | *Commonly circular |