Needle pain in the patient’s eyes may be caused by foreign body in the eye, dry eye, keratitis and other reasons. 1. Foreign body in the eye: if the patient’s eye enters dust, sand and other foreign bodies or there is impingement in the eye, these foreign bodies cause friction and irritation to the mucous membrane of the patient’s eye, and the patient may experience pain similar to the pain of pinprick. 2. Dry eye: because of the instability of the tear film, patients with dry eye can experience discomfort such as dryness and tingling of the eyes, which can also be accompanied by conjunctival congestion, blurred vision and other discomfort. 3. Keratitis: As the cornea is in direct contact with the outside world, it is susceptible to bacterial and viral infections and inflammation. Under the stimulation of inflammation, patients may experience symptoms such as eye stinging, tearing and photophobia. It is recommended that patients with obvious eye stinging pain should consult a doctor in time to assess their condition and follow the doctor’s instructions for treatment.