Blurry eyes should be treated in a way that corresponds to the cause in order to facilitate its recovery. Blurry eyes may be caused by overuse of eyes, dry eyes, glaucoma and other reasons. 1. Excessive eye use: If the patient plays cell phone and watches TV for a long time, works and studies for a long time, or stays up all night, it may cause excessive eye use, which may lead to blurred eyes. It can be improved by resting and avoiding staying up late. 2. Dry eye: Blurry eyes may also occur because dry eye can cause a decrease in the quality of tears and instability of the tear film, leading to temporary refractive error of the eyes. It can be treated by using tear replacement medication, such as sodium vitrate eye drops and polyvinyl alcohol eye drops. 3. Glaucoma: Patients with glaucoma may experience blurred eyes due to long-term high intraocular pressure that gradually compresses the optic nerve. It can be treated by using drugs to lower intraocular pressure, such as carteolol hydrochloride eye drops, latanoprost eye drops, etc. The above drugs should be used according to the doctor’s instructions. All of the above medications should be used as prescribed by the doctor. When the phenomenon of blurred eyes, it is recommended to consult a doctor in a timely manner, identify the cause of the disease and follow the doctor’s instructions to use medication, do not use medication privately, so as not to aggravate the condition.