The invention is directed to methods for preventing and/or treating optic neuritis. The invention is further directed to reducing inflammation associated with the development of optic neuritis. The invention is further directed to methods for preventing and/or treating optic neuritis and/or inflammation associated with the development of optic neuritis by administering to a subject suffering from such conditions, or at risk of developing such conditions, novel cellular factor-containing solution compositions (referred to herein as “CFS” compositions), including novel immediate-release, targeted-release, and sustained-release (SR) cellular factor-containing solution compositions (referred to herein as “SR-CFS” compositions) and/or and Amnion-derived Multipotent Progenitor (AMP) cell compositions.
