A method of using and devices for delivering electromagnetic radiation of a selectedwavelength for the treatment of conditions pertaining to cephalic sensory organs,in particular to treating conditions of the eye (ocular conditions) and conditionspertaining to the ear (otic conditions). The invention is in particular for thetreatment of organelles associated with the acoustic and optic nerves and moreparticularly for the treatment of age related degeneration of such organelles.The invention also provides devices for treating ocular and otic conditions.