Abstract: PCP as lg/m2/body surface was given once per month, with 0.5 mg prednisolone/kg/day, to 155 patients with sever posterior uveitis (PU) and/ or retinal vasculitis (RV). A Disease Activity Index (DAI), based upon the inflammatory state of the eye, was calculated for each section of each eye before the first PCP and then after each PCP. When a remission was obtained the gap between PCP was increased gradually to 2, ...