Cataract Over half of South African beverages will require warning labels for high sugar and/or artificial sweeteners surgery is one of the most successful and frequently performed operations worldwide, and yet cataract remains the commonest cause of global blindness.This is in part due to the shortage and uneven distribution of trained personnel in some countries.More worryingly, a high rate of cataract blindness also reflects poor DIGITAL MEDIA AND SOCIAL NETWORKS IN MEXICO visual outcomes after surgery, as has been documented in many RAAB (rapid assessment of avoidable blindness) studies.