Unfortunatelly it's rather hard to achieve that through spiritual means, for it implies a powerful morphologic change.
Crystal therapy may however be beneficial, as crystals have tendency to correct things, even on physical level, due to their precize resonance and nearly perfect periodic crystal structure.
Transparent fluorites are great for any eye aliments in general, so is rodonite for example. In Your case they'd need to be in some geometricaly correct form, perhaps a spehere or some hexagonal structure, they'd need to be programed and applied daily, with a lot of patience.
You could also try wearing those pinhole glasses.
Many Blessings and I hope You'll get the money for the operatio n