How is allergic keratitis treated?

In daily life, many people neglect eye hygiene. They only seek medical attention when experiencing photophobia, tearing, and conjunctival injection—by which time they have already developed keratitis. So, how is allergic keratitis treated?

How Is Allergic Keratitis Treated?

Allergic keratitis typically refers to keratitis triggered by allergic factors, commonly involving inflammation of the corneal stroma. Its hallmark features include cellular infiltration and neovascularization. Etiological causes may include tuberculosis, herpes simplex virus, varicella-zoster virus, and congenital syphilis. Treatment generally involves systemic antiviral or antitubercular therapy, tailored to the underlying cause. During the acute inflammatory phase, topical corticosteroids are recommended to suppress local inflammation and prevent complications such as posterior synechiae and secondary glaucoma. Patients with severe photophobia may wear sunglasses to minimize light-induced irritation. In cases where corneal scarring leads to significant visual impairment, corneal transplantation may be considered.

Allergic conjunctivitis is primarily caused by an allergic reaction of the conjunctiva to external allergens. Regarding diet, patients are advised to consume bland, non-spicy foods and increase intake of vegetables and fruits rich in vitamins A, B, and C—such as bitter melon, winter melon, watermelon, grapefruit, bananas, and oranges—while strictly avoiding spicy and irritating foods. Such foods can exacerbate conjunctival hyperemia and worsen symptoms of allergic conjunctivitis. Additionally, patients should limit consumption of seafood, including shrimp and fish.

Patients are advised to maintain a balanced, sensible diet, avoid spicy and irritating foods, and take medications strictly as prescribed by their physician. We hope this information proves helpful to you.