Differential Diagnosis for Left Upper Eyelid Swelling
- Single most likely diagnosis
- Allergic conjunctivitis: The patient's symptoms of eyelid swelling and feeling of something in the eye, along with the use of allergy drops, suggest an allergic reaction. The recent exposure to campfire particulates could be an allergen or irritant triggering this response.
- Other Likely diagnoses
- Irritant conjunctivitis: Direct exposure to smoke or particulates from the campfire could cause irritation and swelling of the eyelid and conjunctiva.
- Blepharitis: Inflammation of the eyelid margin could cause swelling and irritation, and might be exacerbated by or unrelated to the campfire exposure.
- Dry eye syndrome: The feeling of something in the eye could be due to dryness, and the patient's symptoms do not seem to be improving with allergy drops.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Orbital cellulitis: Although the patient denies fever and significant pain, orbital cellulitis is a serious infection that requires prompt treatment. It could be caused by an infection introduced through the eye, and missing this diagnosis could lead to severe consequences.
- Angioedema: A severe allergic reaction could cause rapid swelling of the eyelid and potentially compromise the airway.
- Rare diagnoses
- Thyroid ophthalmopathy: Although less likely, thyroid disease can cause eyelid swelling and irritation, and should be considered if other diagnoses are ruled out.
- Sarcoidosis: This autoimmune disease can cause uveitis and other eye symptoms, including eyelid swelling, but is relatively rare and would require further testing to diagnose.