Eye strain can lead to eye discomfort such as soreness and pain, burning, eye drowsiness, dryness, tearing, and in severe cases, headache, dizziness, and even nausea and vomiting, which can seriously affect the patient’s life. In addition, some eye strain may be caused by eye diseases such as conjunctivitis and blepharitis, which are prone to the spread of local infections, so patients are advised to seek prompt medical attention.