There are many reasons why your eyes are still blurry without red vision, and common causes include eye fatigue, refractive error, corneal disease, and so on. 1. Eyestrain; overwork may trigger blurred eyes, and the situation of keeping close vision for a long time leads to soreness and fatigue of the muscles around the eyes. 2. Refractive error: it can lead to blurred vision, common myopia, hyperopia, astigmatism, etc., the light can not fall on the retina, which can lead to blurred vision. 3. Corneal diseases: such as corneal leukoplakia, corneal opacities, corneal opacities, can lead to blurred vision. There may be other reasons, such as fundus lesions, cataracts, etc. It is recommended to go to the hospital in time to find out the cause of the disease.