Question
The eyes tremble, and when looking at strangers, I always have to bow my head to see, feeling that my vision is not very good.
Answer
Nystagmus is divided into congenital nystagmus and secondary nystagmus. The former usually diminishes with age but always remains; the latter is caused by other eye diseases and is usually accompanied by poor vision. It is recommended to take a fundus photo and examine for any associated retinopathy.