Hello Dana,
Welcome to the forum!
Since not all food products are available in different parts of the world, I think that whatever substitutions you need to make will be better for your sugar glider.
If you can give your glider a variety of fresh fruits and some source of protein, then I think your glider will be fine.
If your glider's eye looks like this glider's eyes, then that would be blindness. The blind glider in this picture has no problems moving around. He doesn't glide, but he has no problems exploring.
And welcome to the forum.