Young people have blurred eyes and blurred vision for the following reasons: 1, mainly due to prolonged close eye use, such as cell phones, television, computers, resulting in excessive spasm of the eye muscles, the decline of the adjustment function and the appearance of transient blurred vision, or the time lasts longer, eventually forming myopia, thus affecting vision. In addition, long time eye posture can also form astigmatism. 2, young people who eat spicy, stimulating diet for a long time, stay up late, visual fatigue or eye unhygienic, such as makeup and other reasons, and allergies and other factors can also lead to inflammation, increased secretions in the conjunctival sac, will affect the clarity of tears, thus affecting vision. However, patients are usually accompanied by symptoms such as redness, congestion, edema, and foreign body sensation in the eyes, and the symptoms can be significantly relieved by medication.