Differential Diagnosis for Painful Swelling Eye with Conjunctivitis
Single Most Likely Diagnosis
- Viral Conjunctivitis: This is the most common cause of conjunctivitis and can present with painful swelling of the eye, redness, and discharge. It is highly contagious and often associated with upper respiratory infections.
Other Likely Diagnoses
- Bacterial Conjunctivitis: Similar to viral conjunctivitis but typically presents with a thicker, more purulent discharge. It can be caused by various bacteria and may require antibiotic treatment.
- Allergic Conjunctivitis: This condition is often seen in individuals with allergies and can cause itching, redness, and swelling of the eyes. It may be seasonal or perennial, depending on the allergen.
- Chemical Conjunctivitis: Exposure to irritants or chemicals can cause conjunctivitis, leading to painful swelling, redness, and possibly vision changes.
Do Not Miss Diagnoses
- Acute Angle-Closure Glaucoma: Although less common, this condition is an emergency. It can present with severe eye pain, redness, swelling, and vision loss. If not promptly treated, it can lead to permanent vision loss.
- Endophthalmitis: A rare but serious infection within the eye that can occur after surgery, injury, or blood infection. It presents with severe pain, redness, and vision loss, requiring immediate medical attention.
- Orbital Cellulitis: An infection of the tissues surrounding the eye, which can cause swelling, pain, and vision changes. It can be a complication of sinusitis or a skin infection and requires prompt antibiotic treatment.
Rare Diagnoses
- Giant Papillary Conjunctivitis: Associated with contact lens use, this condition causes inflammation of the conjunctiva under the eyelid, leading to discomfort, blurred vision, and increased sensitivity to light.
- Sjögren's Syndrome: An autoimmune disorder that can cause dry eyes and conjunctivitis, among other symptoms. It is less common and may require specific diagnostic tests for confirmation.
- Keratoconjunctivitis Sicca (Dry Eye Syndrome): While not typically associated with painful swelling, severe cases can lead to significant discomfort and may be considered in the differential diagnosis, especially if other symptoms are present.