The patient’s blurred vision may be related to visual fatigue, or it may be caused by refractive error, presbyopia, glaucoma and other reasons. 1. Visual fatigue: patients with prolonged close-distance eye use or prolonged excessive late-night and other reasons can cause visual fatigue, patients may appear in the eyes, blurred vision performance, may also be accompanied by dry eyes, pain and other uncomfortable symptoms. 2. Refractive error: myopia, hyperopia, astigmatism and other refractive errors, patients can appear blurred vision, patients can wear glasses to correct refractive errors, improve vision. 3. Presbyopia: With age, the elasticity of the patient’s lens decreases, and the adjustment of the eyes decreases, the patient may have presbyopia, and the patient may have symptoms such as blurred vision and blurred eyesight. 4. Glaucoma: When glaucoma strikes acutely, it can lead to increased intraocular pressure and corneal edema, which may affect the vision, thus causing patients to have blurred vision and blurred eyes, and may be accompanied by symptoms such as tearing and photophobia. It is recommended that patients with obvious symptoms of blurred vision should consult a doctor promptly to assess their condition and follow the doctor’s instructions for treatment.