An anti-glare device includes a transparent anti-glare film incorporating a plurality of water-soluble scattering particles distributed therein. A method for making the anti-glare device includes the steps of: a) mixing a transparent resin solution with an aqueous solution of water-soluble colloid to form an emulsion containing a plurality of water-soluble colloidal particles distributed in the emulsion; b) applying the emulsion on a transparent substrate to form a preliminary film on the substrate; and c) curing the preliminary film to form a transparent anti-glare film on the transparent substrate, the transparent anti-glare film including a plurality of the colloidal particles distributed within the transparent anti-glare film and on a surface of the transparent anti-glare film.