What is glaucoma?
A study carried out by a group of scientists from Sapporo Medical University School of Medicine and the Yagi Hospital of Jiko Medical Association in Japan, have found that the daily consumption of blackcurrant anthocyanins slowed down the visual field deterioration and elevation of ocular blood flow (high eye blood pressure) in patients with open-angle glaucoma (OAG). The positive effects of blackcurrant anthocyanins were observed after only two weeks of daily oral administration to OAG patients. The effects were also long term, as lower eye blood pressure and reduced visual field deterioration were observed in the patients 12 and 24 months after the start of the trail. ,
 Kaori Yoshida, Ikuyo Ohguro, and Hiroshi Ohguro. Journal of Ocular Pharmacology and Therapeutics. May 2013, 29(5): 480-487. https://doi.org/10.1089/jop.2012.0198
 Hiroshi Ohguro, Ikuyo Ohguro, and Saeko Yagi. Journal of Ocular Pharmacology and Therapeutics. January 2013, 29(1): 61-67. https://doi.org/10.1089/jop.2012.0071