How old is Ni Ping's son?

Ni Ping's son was born in February 1999. He belongs to the tiger. Ni Ping nicknamed his son "Tiger". When you were 1 1 month old, Ni Ping found that you were always wrestling and it was difficult to stand still. Your eyes seem a little abnormal, so you can't look at them, you can't swim with the light, you can't catch what's in front of you. Going to the hospital, the result is not optimistic. Congenital cataract is a very troublesome disease, and the best treatment time should be between 8 17 weeks after birth.