She's next gen. Her father will simply study her Mom's technique, develop a safer, more efficient variant, and have her learn it (or have her copy it herself if she awakens her Sharingan). Sasuke has a lot of pride, remember. He'll never let his daughter be fodder, _even_ with Sakura as her mother.
Also, while realistically possible, improving an MS's vision through medical ninjutsu (byakugou or otherwise) may not be possible in the Narutoverse. Otherwise, numerous Uchihas of the past would have already gone that route (as it is much more obvious and less painful than killing their sibling for their eyes)