This head-mounted display enables accurate performance when advanced "human technology" is required in clinical settings. It is particularly useful for reference monitoring in ultrasound-guided centesis as medical staff can view tomographic images of blood vessels, reducing the possibility of mistakes to reassure both patients and staff. It can even be used while wearing glasses. The flexible arm enables freer positioning of the image display to maximize the field of view during tasks. Chemical-resistant material and an easy-to-wipe shape make it even more convenient in everyday use. Its styling is intended to reduce patient stress.