Differential Diagnosis for Bilateral Conjunctivitis
Single Most Likely Diagnosis
- Allergic Conjunctivitis: This is the most likely diagnosis given the acute onset of bilateral conjunctivitis with clear discharge and eye puffiness, especially in the absence of systemic symptoms like headache or vomiting. Allergic reactions are common and can be triggered by various allergens, leading to these symptoms.
Other Likely Diagnoses
- Viral Conjunctivitis: This is another common cause of bilateral conjunctivitis, often presenting with clear discharge and eye puffiness. It can be highly contagious and is usually accompanied by other symptoms like a sore throat or recent upper respiratory infection, though these are not mentioned in the scenario.
- Bacterial Conjunctivitis: Although it typically presents with purulent discharge, some bacterial conjunctivitis cases can have a clear discharge, especially in the early stages. It's a consideration, especially if there's a history of exposure to someone with a similar condition.
Do Not Miss Diagnoses
- Acute Angle-Closure Glaucoma: Although the patient does not report headache or vomiting, which are common symptoms, acute angle-closure glaucoma can sometimes present atypically, especially in the early stages. It's crucial to consider this diagnosis due to its potential for severe vision loss if not promptly treated.
- Keratitis: Inflammatory or infectious conditions of the cornea can present with conjunctivitis-like symptoms and are important to rule out due to the potential for serious complications, including vision loss.
Rare Diagnoses
- Sjögren's Syndrome: An autoimmune disorder that can cause conjunctivitis among other symptoms. It's less likely given the acute presentation but should be considered in the differential, especially if symptoms persist or other systemic symptoms develop.
- Giant Papillary Conjunctivitis: Typically associated with contact lens use, this condition can cause chronic conjunctivitis but is less likely given the acute presentation in this scenario.