What is the primary treatment approach for keratitis?

The primary treatment approach for keratitis is indeed dependent on the specific cause of the condition. Keratitis can be caused by various factors, including bacterial, viral, fungal infections, or even non-infectious factors such as dry eyes or exposure to harmful substances. Each type of keratitis requires a tailored treatment plan that addresses the underlying cause.

For instance, bacterial keratitis is typically treated with antibiotic eye drops, while viral keratitis, such as that caused by the herpes simplex virus, may be managed with antiviral medications. Fungal keratitis would necessitate antifungal treatment. On the other hand, non-infectious keratitis might be treated with lubricating eye drops or anti-inflammatory medications, depending on the specific cause. Therefore, recognizing and treating the underlying cause is crucial in managing keratitis effectively.

The other choices are less appropriate as standalone approaches. Long-term use of oral antivirals may not address non-viral causes. Surgical intervention may be necessary in severe cases but is not the primary method of treatment for all forms of keratitis. Immediate use of corticosteroids could be harmful if there is an underlying infection, as they can suppress the immune response and worsen the condition. Hence, the most effective treatment plan is one that is