Eye hit to see things flickering may be eye trauma caused by retinal damage, corneal detachment, etc., you need to go to the hospital as soon as possible to check, under the guidance of the doctor to use medication.
Common such as collision, sports, play, boxing, gas impact and other situations may cause eye trauma, if just see things flash, there may be a mild or moderate injury, corneal or retinal damage caused by, but it is difficult to distinguish by themselves, it is generally recommended to immediately go to the hospital for examination, to avoid missing the best time for treatment.
You can use eye drops to promote cell regeneration under the guidance of the doctor, use glucocorticosteroids such as prednisone and other drugs such as vitamin B1, vitamin B12 and other neurotrophic drugs according to the situation, and at the same time pay attention to rest and minimize eye use.