10 Dec 2014 Blackmores Institute Warning to bariatric surgery patients take your supplements for eyes sake 10 Dec 2014 Share Share on LinkedIn Share on Facebook Share on Twitter Share on Google+ Share on Pinterest News Obese patients who have undergone bariatric surgery to shed weight should definitely take the supplements prescribed to them to protect their eyes, warn researchers. They say taking in too little vitamin A, in particular, could in some cases actually cause night blindness, dry eyes, corneal ulcers, and in extreme cases total blindness. × To continue reading this article, please Log In or Sign Up for access.