I wish this child a bright and happy future--she had a difficult entry into this world and it still continues with a "deformed eye". I believe the Earl and Countess are protecting their daughter's privacy and "defect". The poor child does not need to read when she is older about pictures of her looking like some ogre. The press can be so incredibly cruel!! Edward and Sophie don't need to hear, "why did you let them see me that way?"
Even if Louise didn't have a "deformed eye", I believe Edward and Sophie would still have had her under tight wraps.
The only "advice" I could give Edward and Sophie is just to show a little bit of Louise when she is recovered because when the Duke of York was born to the Queen and the Duke of Edinburgh, there were no pictures for years and the press and public though Andrew was mentally deficient or physically deformed.