Differential Diagnosis for Right Eye Redness and Discharge
Single Most Likely Diagnosis
- Conjunctivitis: This is the most common cause of eye redness and discharge, often due to viral or bacterial infections. It's highly likely due to its prevalence and the symptoms described.
Other Likely Diagnoses
- Blepharitis: Inflammation of the eyelids can cause redness and discharge, often associated with itching and burning sensations.
- Dry Eye Syndrome: Although it primarily causes discomfort and blurred vision, severe cases can lead to secondary infections that might result in discharge.
- Allergic Conjunctivitis: Seasonal or perennial allergies can cause eye redness and discharge, accompanied by itching and tearing.
Do Not Miss Diagnoses
- Acute Angle-Closure Glaucoma: A medical emergency that can present with eye redness, severe pain, and vision loss. Although less common, missing this diagnosis can lead to permanent vision loss.
- Endophthalmitis: A severe infection within the eye that can occur post-surgically or following an eye injury, presenting with severe pain, redness, and vision loss.
- Orbital Cellulitis: An infection of the tissues surrounding the eye, which can cause redness, swelling, and discharge, and potentially lead to serious complications if not promptly treated.
Rare Diagnoses
- Keratoconjunctivitis Sicca: A chronic condition causing severe dryness of the conjunctiva and cornea, which can lead to secondary infections and discharge.
- Sjögren's Syndrome: An autoimmune disorder that can cause dry eyes and mouth, potentially leading to eye redness and discharge due to decreased tear production.
- Trachoma: A chronic infection of the eye caused by Chlamydia trachomatis, leading to repeated episodes of conjunctivitis and potentially causing blindness if untreated.