How many days does acute keratitis take to resolve?

The eyes are extremely delicate. Keratitis, a common ophthalmic condition, is characterized by redness, swelling, and even ulceration during its course. Neglecting eye protection in daily life can lead to keratitis. Even frequent eye rubbing with unwashed hands may introduce bacteria into the cornea, worsening the condition. So, how many days does it take for acute keratitis to resolve?

How long does acute keratitis take to resolve?

Acute keratitis involves inflammation; with prompt treatment, significant improvement and full recovery can generally be achieved within one month. Acute keratitis is commonly caused by bacterial infection. Following infection, patients may develop corneal ulcers and keratitis, accompanied by infiltrative lesions in the cornea. At this stage, patients should seek medical care—typically involving topical antibiotic eye drops and ointments. With treatment, corneal damage gradually heals, bacteria are eradicated, and the cornea progressively regenerates.

Because the cornea lacks blood vessels, its healing process is relatively slow, requiring an extended recovery period. However, the cornea is densely innervated, making pain more pronounced than in other tissues. Patients may also experience photophobia, difficulty opening the eyes, and excessive tearing. When treating keratitis, wearing sunglasses to shield the eyes from light is recommended.

Patients with acute keratitis should also prioritize rest, avoid staying up late, limit screen time (e.g., smartphones and computers), maintain ocular hygiene, and prevent sweat from entering the eyes. We hope this information proves helpful to you.