Masked examiners assessed the primary outcome of treatment success , defined by achieving the following at @ and @ months : ( @ ) @ + anterior chamber cells , @ + vitreous cells , @ + vitreous haze and no active retinal/choroidal lesions in both eyes , ( @ ) @ mg of prednisone and @ drops of prednisolone acetate @ % a day , and ( @ ) no declaration of treatment failure because of intolerability or safety .