The Home Vision Monitor® Model 0005 is a vision function test provided as a downloadable app on to the user’s supplied cell phone or tablet. The Home Vision Monitor® Model 0005 implements a shape discrimination hyperacuity (SDH) vision test which allows patients to perform their own vision test at home. If a significant worsening of vision function is detected the physician will be notified and provided access to the vision self-test results so that they can decide whether the patient needs to be seen sooner than their next already scheduled appointment.