Lyric discussion by trenta 

Cover art for Candy lyrics by William Fitzsimmons

I think its:

"Oxygen that keeps me breathing, took your sight"

I'm guessing his mother went blind after having treatment for another illness. Beautiful song.

Before that it says "incubation meant to save your fragile life" and then "oxygen that keeps me breathing, took your sight"

maybe it has something to do with birth? Him being premature and needing oxygen, and then complications from the pregnancy made her blind? Just taking a stab at it...