Eye pain in hot weather can be seen in normal people, but it may also be caused by allergic conjunctivitis, visual fatigue, etc., you should consult a doctor in time to clarify the cause of treatment. 1. Physiological conditions: normal people sweat more when the weather is hotter, sweat into the eyes will lead to eye pain, congestion, foreign body sensation, usually no special treatment, and can be gradually relieved. 2. Allergic conjunctivitis: patients with eye pain in hot weather may also be caused by allergen-induced allergic conjunctivitis, patients may experience itchy eyes, conjunctival congestion, tearing and other uncomfortable symptoms. 3. Visual fatigue: when the weather is hot, due to the heat of some people’s sleep quality will become poor, resulting in increased eye time caused by visual fatigue, patients may appear eye soreness, dryness and other uncomfortable symptoms. It is recommended that patients with significant eye pain should consult a doctor in time to assess their condition and follow the doctor’s instructions for treatment.