Nummular keratitis
Nummular keratitis is a type of corneal disease characterized by the presence of small, coin-shaped (nummular) lesions on the cornea. It is a relatively rare condition and is often associated with other ocular or systemic diseases.
Etiology[edit | edit source]
The exact cause of nummular keratitis is unknown. However, it is often associated with viral infections, particularly herpes simplex virus and varicella-zoster virus. Other potential causes include bacterial infections, fungal infections, and autoimmune diseases.
Symptoms[edit | edit source]
Patients with nummular keratitis typically present with eye pain, photophobia (sensitivity to light), blurred vision, and tearing. The characteristic nummular lesions can be seen on slit lamp examination.
Diagnosis[edit | edit source]
Diagnosis of nummular keratitis is primarily based on clinical examination. Slit lamp examination reveals the presence of nummular lesions on the cornea. Additional tests such as corneal scraping and culture may be performed to identify the underlying cause.
Treatment[edit | edit source]
Treatment of nummular keratitis is aimed at managing the underlying cause and relieving symptoms. This may involve the use of antiviral medication, antibiotic medication, or corticosteroid eye drops. In severe cases, corneal transplantation may be necessary.
Prognosis[edit | edit source]
The prognosis of nummular keratitis is generally good with appropriate treatment. However, recurrent episodes can lead to corneal scarring and permanent vision loss.
See also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD
