Board Thread:Episode Discussions/@comment-1181222-20170809100834/@comment-734582-20170810073307

Kirameku wrote: Also, now that I think about it, why did Sakura struggled with a question so simple as "Does papa wear glasses"? I think she was distracted by the question. I mean, first of all it's pretty funny to imagine the guy with godly eyes to have glasses. She probably also wondered if the Sharingan could correct bad eyesight permanently. Making it hard for her to know whether Sasuke ever could've had bad eyesight, since it would've been corrected before she really got to know him. She did spend her days daydreaming about him after all, and i would be surprised if she was aware that she was fantasizing and glorifying him massively.

It's also pretty clear that Sakura doesn't want Sarada to know about the Uchiha's painful and blood-and-death-infested past (or at least, the details), since it would put an unfair burden onto that child.