Yes, it is quite true that bilberry is helpful for people's cataracts. The bilberry is general considered as an improvement to eyesight. Being one of the most valuable and edible herbal remedies, it possesses of vitamin C that provide moisture for the eyes and make the eyes look bright. It also contains various potential health benefits, such as antioxidant agents that can penetrate through the bloodstream easily. Besides, it can mediate a detergent-like perturbation of cell membranes and light-induced damage to the cell, reducing the retinal pigment epithelial cells with age and in some retinal disorders. What's more, bilberry can be used to treat many other diseases, such as urinary tract infections, scurvy, and digestive problems. To prevent cataract, you can use bilberry meanwhile eat plenty of fruits and vegetables, especially fruits and vegetables with vibrant colors. After using bilberry for a period of time, you can visit an ophthalmologist to see whether it helps improve your cataract.