When looking at the light there are scattered rays, it may be caused by refractive error, such as myopia or astigmatism, these diseases may cause this symptom to occur, so when this symptom appears, it is recommended to go to the hospital as soon as possible to do a vision examination and optometry examination, through this examination can clarify whether the eyes have refractive error and the exact number of degrees. If there is myopia or astigmatism, and the degree is relatively large, the vision has a more obvious impact, you need to wear glasses early to improve vision, so that in ordinary times to see more clearly, but also to avoid eye fatigue, if you do not want to wear frame glasses, you can also choose corneal contact lenses, is commonly known as contact lenses, but in the choice of contact lenses, try to go to the regular hospital The actual contact lenses are a lot more effective than the ones that are available in the market.