However, none of those studies demonstrated that marijuana--or any of its components--could safely and effectively lower intraocular pressure any more than a variety of drugs then on the market white widow some potentially serious side effects were noted. . . . Research to date has not investigated whether marijuana use offers any advantages over currently available glaucoma treatments or if it is useful when used in combination with standard therapies. The National Eye Institute stands ready to evaluate any well-designed studies for treatment of eye diseases, including those involving marijuana for treatment of glaucoma."