The Tumbling E Eye Chart is a reliable instrument for conducting vision screening. This device is used to check visual acuity among children, illiterate people and other patients unable to read the traditional eye chart that uses the letters of alphabet. The Tumbling E Eye Chart is equipped with the image of the letter "E" turned in various ways. The examinee should indicate in which way the letter is turned rather than read any letters on the chart. The use of this eye chart is common in hospitals, eye clinics, schools and other communities' vision screening facilities. The eye chart is produced using high-contrast printing technology to provide for high visibility and reliable testing results.