Blurred vision in one eye and clear vision in the other eye may be related to trauma to the eye, infectious inflammation, retinopathy, cataract, and so on. 1. Trauma: Blurred vision can be caused when one eye is hit, squeezed, collided, sharpened and other traumatic injuries, resulting in damage to the eye muscles, eyeball, cornea and other tissues. 2. Infectious inflammation: Inflammatory reaction caused by bacterial, mycoplasma and other pathogens infection in one eye, local exudation, hemorrhage, etc. affect refraction and imaging, which can also lead to blurred vision. 3. Retinopathy: Retinal detachment, diabetic retinopathy, hypertensive retinopathy, macular degeneration, etc. on one side of the eye can cause blurred vision. 4. Cataract: aging, nutritional and metabolic disorders and other factors lead to clouding of the lens, poor light transmission, so blurred vision. Blurred vision in one eye and clear vision in the other eye may be related to a variety of factors, and it is recommended to consult a doctor for a clear diagnosis if there is no relief for a long time.