Name : Shakuntla Eye Vision Test Chart Snellen (English Chart)
Net Quantity (N) : 1
A person taking the test covers one eye from 6 meters or 20 feet away, and reads aloud the letters of each row, beginning at the top. The smallest row that can be read accurately indicates the visual acuity in that specific eye. The symbols on an acuity chart are formally known as "optotypes"
Country of Origin : India
More Information