OH to hear such news! (((MP)))
There are wonderful things they are doing for vision loss and I hope something they have will help.
I know this is feels like such a tragedy at this time though.
Stay strong. There are worse things and she needs to know that you have faith in her, no matter what.

<font color="purple"> [b]Father in heaven, all powerful gracious Lord God: I come to your throne of grace asking for mercy for this young one and her vision. If it can be Your acceptable will, Father, please return the vision or at the very least, let her keep what vision she has. May it not deteriorate further, Lord God. We all know from Your Word that children are at the very heart of Your love, and I come pleading such mercy for this child of yours. In Christ's name I ask, amen. </font>