The worker is required to have visual acuity to determine the accuracy, neatness, and thoroughness of the work assigned (ie., custodial, food services, general laborer, etc.) or to make general observations of acilities or structures (ie., security guard, inspection, etc.). Medium Work: Exerting up to 50 pounds of force occasionally, and/or up to 20 pounds of force frequently, and/or up to 10 pounds of force constantly to move objects.