Snellen chart H, K, O, S, 3, U, Y, A, C, E, G, L, 2. The normal Snellen chart is printed with eleven lines of block letters. The first line consists of one very large letter, which may be one of several letters, for example E, H, or N. Subsequent rows have increasing numbers of letters that decrease in size. A person taking the test covers one eye from 6 metres 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
Name-letter effect reading made a difference. Four other factors were varied: 1) either pairs or triads of letters; 2) encircling the preferred letter or crossing out the less preferred one(s); 3) the letters QXYZ, infrequent in Dutch, included or excluded; 4) own-name letters presented first or last. All conditions gave a name-letter effect, with a stronger effect when QXYZ were included and the less preferred letter was crossed out. No significant difference was found using family name rather than first name or both names. While the effect was strongest for initials, subsequent data analysis revealed a significant effect even without the first