Differential Diagnosis for Stye with Eye Redness and Drainage
- Single most likely diagnosis
- Hordeolum (Stye): This is the most likely diagnosis given the presentation of a stye, which is a localized infection or inflammation of the eyelid margin involving hair follicles of the eyelashes or meibomian glands. The symptoms of eye redness and drainage are consistent with this condition.
- Other Likely diagnoses
- Blepharitis: An inflammation of the eyelids that can cause redness, itching, and drainage. It often accompanies or precedes a stye and can share similar symptoms.
- Conjunctivitis: An infection or inflammation of the conjunctiva, which can cause eye redness and discharge. It can be viral, bacterial, or allergic in nature.
- Dacryocystitis: An infection of the lacrimal sac, which can cause eye redness, swelling, and discharge, especially if there's an obstruction in the tear drainage system.
- Do Not Miss (ddxs that may not be likely, but would be deadly if missed.)
- Orbital Cellulitis: A serious infection of the tissues surrounding the eye, which can cause redness, swelling, and discharge, but also proptosis, vision changes, and severe pain. It requires prompt medical attention.
- Endophthalmitis: A severe inflammation of the interior of the eye, usually caused by infection. It's a medical emergency that can result in vision loss if not treated promptly.
- Rare diagnoses
- Keratitis: An inflammation of the cornea, which can be caused by infection or injury. While it can cause eye redness and pain, it's less commonly associated with a stye.
- Angioedema: A rapid swelling of the dermis, subcutaneous tissue, mucosa, and submucosal tissues. It can cause significant eyelid swelling and, occasionally, redness and discomfort, but it's less likely to present with drainage.