Printable eye test charts are available from websites for Vision and Disabled World. Vision Source provides a downloadable eye chart along with instructions for how to conduct a vision test. The chart provided on both sites is the traditional Snellen eye chart.
The Snellen eye chart, named after the doctor who created it, has been in use since 1862. It is the chart frequently used in doctor's offices and at the Department of Motor Vehicles for vision testing. Some doctors now use the LogMAR eye chart, but the Snellen is the most readily available chart for printing and using to test your vision at home.