The patient’s eyes are painful, itchy and a little swollen, which may be caused by visual fatigue, blepharitis, conjunctivitis and other diseases, and the patient should consult a doctor in time to clarify the cause of the disease and then carry out treatment. 1. Visual fatigue: If the patient stares at the cell phone or computer for a long time or studies under too dark a light, it can cause visual fatigue, and the patient may have sore and itchy eyes, accompanied by tingling, swelling and other uncomfortable symptoms. 2. Blepharitis: patients with eye pain and itchy and a little swollen, there may be blepharitis caused by inflammation stimulation, patients can appear local redness, swelling, burning and exudates and other symptoms, patients can use levofloxacin eye drops, erythromycin ophthalmic ointment and other medications. 3. Conjunctivitis: Conjunctivitis patients in the inflammation stimulation, can also appear in the eyes and pain and itching and a little bit swollen discomfort symptoms, but also with photophobia, tearing, dryness and other symptoms. It is recommended that patients with painful, itchy or swollen eyes should consult a doctor promptly to assess their condition and follow the doctor’s instructions for treatment.