Not being able to see clearly when driving at night is not necessarily caused by astigmatism. There are many causes of vision loss, such as myopia, hyperopia, astigmatism, amblyopia, cataracts, night blindness, retinal fundopathy, all of which may cause vision loss. If you can’t see clearly when driving at night, it may be a manifestation of night blindness. High astigmatism, high hyperopia or high myopia, retinitis pigmentosa, corneal chondromalacia, all of these may cause night blindness. Therefore, if you can’t see clearly when driving at night, it is recommended to go to the hospital as soon as possible to improve the vision examination, optometry examination, intraocular pressure examination and funduscopic examination, after the above routine examination, it can be clear that the specific causes of vision loss, so that symptomatic treatment can be given according to the specific causes. If astigmatism is the cause, glasses can be used to improve vision.