18 Aug 2017 --- A 500mg dose of citicoline from Kyowa Hakko Europe (Kyowa) may significantly slow the progression of visual acuity loss due to glaucoma. This is according to a new study by researchers at the Sao Paolo Hospital Eye Clinic at the University of Milan, who followed 41 patients with progressing glaucoma – a disease that damages the optic nerve and can lead to vision problems and blindness – over two years.