A device that enables an assessment or a management of a medical condition in a patient, includes a base member comprising a pair of surface spaced apart from each other to define a thickness of the base member. The base member can be provided as an elongated base member. Markings are disposed on one surface from the pair of surfaces of the elongated base member along a length of the elongated base member. An array of targets is provided with targets being disposed, during use of the device, below a bottom edge of the elongated base member. Coupling members are also provided with each coupling member coupling a respective target from the array of targets to the elongated base member for a reciprocal linear movement along the length of the elongated base member. The device can be affixed to a structure or provided as a mobile device.
