Patients with stromal keratitis typically present with symptoms such as eye redness, pain, blurred vision, tearing, and sensitivity to light. In some cases, there may be a visible white or grayish opacity in the cornea. The severity of symptoms can vary depending on the underlying cause and the extent of the inflammation.

The diagnostic workup for stromal keratitis involves a thorough eye examination by an ophthalmologist. This includes visual acuity tests, slit-lamp examination to assess the cornea, and possibly corneal staining to highlight any damage. In cases where an infectious cause is suspected, laboratory tests such as viral cultures or polymerase chain reaction (PCR) may be conducted to identify the pathogen.

Treatment of stromal keratitis depends on the underlying cause. For herpetic stromal keratitis, antiviral medications such as acyclovir are commonly prescribed. Corticosteroids may also be used to reduce inflammation, but they must be administered carefully to avoid exacerbating the infection. In non-infectious cases, treatment may involve anti-inflammatory medications or immunosuppressive therapy. Severe cases might require surgical intervention, such as a corneal transplant.

The prognosis for stromal keratitis varies. With prompt and appropriate treatment, many patients experience significant improvement in symptoms and vision. However, some may develop complications such as corneal scarring, which can lead to permanent vision loss. Regular follow-up with an eye specialist is crucial to monitor the condition and adjust treatment as needed.

Stromal keratitis can be caused by various factors. The most common infectious cause is the herpes simplex virus, which can reactivate and lead to recurrent episodes. Other infectious agents include bacteria, fungi, and parasites. Non-infectious causes include autoimmune disorders, such as rheumatoid arthritis or lupus, and physical trauma to the eye.

Stromal keratitis is relatively uncommon compared to other forms of keratitis. Herpetic stromal keratitis is more prevalent in adults, with a higher incidence in individuals with a history of cold sores or other herpes simplex virus infections. The condition can occur worldwide, but the prevalence may vary based on geographic and environmental factors.

The pathophysiology of stromal keratitis involves inflammation of the corneal stroma, which can lead to tissue damage and scarring. In herpetic cases, the virus can cause direct cytopathic effects and trigger an immune response that contributes to the inflammation. In autoimmune cases, the body's immune system mistakenly attacks the corneal tissue, leading to similar inflammatory processes.

Preventing stromal keratitis involves managing risk factors and underlying conditions. For herpetic keratitis, antiviral prophylaxis may be recommended for individuals with frequent recurrences. Protective eyewear can help prevent trauma-related cases. Maintaining good eye hygiene and avoiding contact lens misuse are also important preventive measures.

Stromal keratitis is an inflammatory condition of the corneal stroma that can impair vision. It is often caused by infections, particularly the herpes simplex virus, but can also result from autoimmune diseases or trauma. Diagnosis involves a comprehensive eye examination, and treatment depends on the underlying cause. With appropriate management, many patients can achieve good outcomes, although some may experience complications.

If you suspect you have stromal keratitis, it is important to seek evaluation by an eye specialist. Symptoms such as eye redness, pain, and blurred vision should not be ignored. Treatment options are available and can be highly effective, especially when initiated early. Regular follow-up care is essential to monitor the condition and prevent complications.