Frequent crying in itself does not cause vision loss due to pathology of the eye itself. The main cause of vision loss is the presence of certain diseases of the eye, either organic or functional. Common functional diseases include refractive errors, such as myopia, hyperopia, astigmatism or amblyopia, visual fatigue, etc., while common organic eye diseases include cataract, glaucoma, fundus diseases (e.g., optic neuritis, ischemic optic neuropathy, etc.) If you have a vision loss, you need to go to the hospital as soon as possible to improve the relevant examinations, and only when you have a clear understanding of the cause of the disease can you choose the right treatment. If you don’t get timely treatment in the early stage of the disease, the aggravation of the disease will easily cause irreversible changes to vision, visual function or eye structure, so you still need to pay attention to it.