Wet and blurry eyes are usually caused by conjunctivitis, impaired tear drainage, and visual fatigue due to excessive eye use. 1. Conjunctivitis: As the patient’s conjunctiva is inflamed, the secretion increases and covers the cornea, so the patient will have the phenomenon of moist and blurred eyes. 2. Tear drainage obstacle: tear sac inflammation, nasolacrimal duct obstruction and other causes of tears can not be excreted to the nasal cavity in a timely manner, resulting in the accumulation of tears in the lake of tears, the corneal surface, which can be manifested in the tears of the eyes wet, blurred vision. 3. Excessive eye use leads to visual fatigue: As the eyes look at objects for a long time in close proximity, too much time will lead to ciliary muscle spasm. Eye blinking significantly reduced, excessive evaporation of tears, resulting in dry eyes, reflex tear secretion, resulting in the phenomenon of moist and blurred eyes. If the patient’s eyes are wet and blurred and cannot be relieved by rest, it is recommended to go to the hospital as soon as possible for a relevant examination to clarify the specific cause and then follow the doctor’s instructions.