That's great news about your vision, Natalie! It's nice that they're willing to be flexible about giving you breaks from the infusions as needed.
-----
There is an article in Motley Fool telling how to get PML updates:
http://www.fool.com/investing/high-g...do-is-ask.aspx
It seems that ordinary people (non-MDs) will have to ask for the PML updates every month from Biogen's investor relations department.