If sunscreen gets into the eyes, the discomfort can vary depending on the amount and type of sunscreen. Typically, the burning or stinging sensation may last several hours. It's essential to rinse the eyes thoroughly with clean, cool water to help remove the sunscreen. If the discomfort continues or if vision becomes affected, it's imperative to see an optometrist. While sunscreen in the eyes is usually not an acute eye emergency, it's always wise to consult a professional if symptoms persist.