Honey from Meliponinae (Tetragonisca angustula) and other stingless bees of the tropics has long been claimed to cure cataracts in local medicine. Science backs up the claim with a finding that chemicals in the honey reduce opacity – Journal of Health Science – Putative Anticataract Properties of Honey Studied by the Action of Flavenoids on a Lens Culture Model – http://goo.gl/HxM85