Question

A 30 year old male presents with a history of injury to the eye with a leaf 5 days ago, and pain, photophobia, and redness of the eye for 2 days. What would be the most likely pathology?

• A. Anterior uveitis
• B. Conjunctivitis
• C. Fungal corneal ulcer
• D. Corneal laceration

Hint:

Vegetable matter injury with symptoms starting days later, not right away, points to a fungal corneal ulcer.

Answer 1

The Correct Option is C

Two details in this history matter most: what caused the injury, and how long it took for symptoms to appear.

1. Anterior uveitis: Can follow trauma, but it has no special link to vegetable matter injury and does not explain why the plant injury specifically matters here.
2. Conjunctivitis: Causes redness but usually mild discomfort rather than marked pain and photophobia, and it is not a typical outcome of a corneal injury with plant matter.
3. Fungal corneal ulcer: Vegetable matter injuries are the classic setup for fungal keratitis, since fungal spores live on plant surfaces. Fungal ulcers also tend to grow slowly, so pain and photophobia appearing several days after the injury, rather than right away, fits this diagnosis well.
4. Corneal laceration: A cut to the cornea causes sharp pain immediately at the time of injury, not a gradual onset of symptoms starting days later, so the timeline does not match.

The combination of a vegetable matter injury and a delayed, several day onset of pain, photophobia, and redness is the textbook picture of a fungal corneal ulcer.

Let's summarize:

• Plant or vegetable matter injuries carry a specific risk for fungal keratitis.
• A slow, delayed onset of symptoms after such an injury favors a fungal cause over a bacterial or mechanical one.

So the most likely pathology is a fungal corneal ulcer.