An adjustable head rest for supporting the head of a patient during radiation therapy is shown. The head rest includes a table plate, an adjustable lead screw rotatable coupled to the table plate, a base plate threadably coupled to the lead screw and a uniframe including a molded member removably coupled to the base plate for supporting the head of the patient. The method of providing radiation therapy to a patient includes the steps of supporting the front portion of the head of the patient within a molded member that matches the contours of the front portion of the head of the patient; adjusting the vertical elevation of the molded member; by rotating the lead screw; and delivering a prescribed amount of radiation to the rear portion of the head of the patient.