My mother has just filed for Social Security. I am living with her, and have been blind since birth. I have now been put on a mandatory child adult disability benefit. I was told if I did not apply, I would be no longer eligible for supplemental security income. Are there any laws that stipulate this in writing? Also, I cannot find anywhere on the Internet that says what the Sga earnings are for someone who is blind, and now is on child adult disability benefits. Thank you very much for your help.