Well there's nothing wrong with Uma's eyesight anyway. She spoke, in an interview with Vanity Fair (Italy) about "Bel Ami" and Robert Pattinson and of course she only had praise for her co-star.
Vanity Fair: You also shot Bel Ami, by Guy de Maupassant’s novel with Robert Pattinson
Uma Thurman: Robert is beautiful. Almost more beautiful in person than on screen. He is also a good actor. He will make a great career, there will not be only Twilight in his career
Thanks to robertpattinsonmoms for the translation