Differential Diagnosis for Hazy Cornea with Conjunctival Injection
- Single Most Likely Diagnosis
- Keratitis: This is the most likely diagnosis due to the presentation of a hazy cornea, which is a hallmark of corneal inflammation or infection. Conjunctival injection (redness) often accompanies keratitis, making it a probable cause.
- Other Likely Diagnoses
- Corneal Ulcer: A corneal ulcer can cause haziness of the cornea and is often associated with significant conjunctival injection. It's a common condition that can result from infection or trauma.
- Uveitis: Although primarily affecting the uveal tract, anterior uveitis can cause conjunctival injection and, in severe cases, may lead to corneal edema, giving a hazy appearance.
- Corneal Abrasion or Foreign Body: Trauma to the cornea can cause both haziness due to edema and injection from irritation or inflammation.
- Do Not Miss Diagnoses
- Endophthalmitis: This is a severe, sight-threatening infection within the eye. While less common, it can present with a hazy cornea and significant conjunctival injection, among other symptoms. Missing this diagnosis could lead to severe vision loss.
- Acute Angle-Closure Glaucoma: This condition can cause corneal edema (leading to a hazy cornea) and conjunctival injection. It's an emergency that requires immediate treatment to prevent permanent vision loss.
- Rare Diagnoses
- Interstitial Keratitis: A rare condition characterized by inflammation of the corneal stroma, which can cause a hazy cornea. It's often associated with systemic diseases or infections.
- Scleritis: Although it primarily affects the sclera, severe cases of scleritis can lead to secondary corneal involvement, causing haziness and significant conjunctival injection. It's less common than other conditions listed but should be considered in the differential diagnosis due to its potential for severe complications.