... Bilberry can act as a coadjutant in heme-ralopy and diabetic retinopathy by stimulating rhodopsin production.1. Normalization of capillary permeability ... , thirty-one patients with various types of retinopathy (twenty with diabetic retinopathy, five with retinitis pigmentosa, four with macular degeneration, and ... to hemorrhage were observed in all patients, especially those with diabetic retinopathy.