Patent ID: 8426371

Claim:
A method for treating a retinal pigment epithelium (RPE) related disorder comprising administering to a human in need thereof a composition comprising a physiologically acceptable carrier and a compound having a structure of formula 1: at an amount effective in enhancing the function of RPE, wherein each of R 1 and R 2 is selected from the group consisting of C-6-Deoxy-xylo-hexos-4-ulosyl, α-Arabinose, β-Ribose, β-Xylose, β-Lyxose, β-Allose, β-Altrose, β-Mannose, β-Gulose, β-Idose, β-Talose, β-Tagatose, β-Fructose, β-Galactose, β-Glucose, β-Arabinose, and α-Rhamnose, and R 1 and R 2 are attached to C-6 and C-8 positions of formula 1, respectively, as C-glycosides, and wherein the RPE related disorder is selected from the group consisting of RPE degeneration, age-related macular degeneration, photoreceptor degeneration, choroidal neovascularization, and proliferative retinopathy.