Potential vision glasses are used to view a reading chart of the Retinal Acuity Meter (RAM) or the C or E charts of the DiagnosticGame App.  Includes Carrier Frames,  one Panoramic Pinhole-Lens  Clip-on, and Occluder Clip-on.  Also available in solid disc pinhole rather than Panoramic Pinhole.  For use with the DiagnosticGame App, the Panoramic Pinhole is recommended.