Jaeger chart on different Jaeger cards currently in use is very high. Therefore, test results with different Jaeger cards are not comparable. More commonly, distance vision acuity is tested using the Snellen chart, familiarly seen wall mounted with a large letter at the top. Jaeger chart The Jaeger chart is an eye chart used in testing near vision acuity. It is a card on which paragraphs of text are printed, with the text sizes increasing from 0.37mm to 2.5mm. This card is to be held by a patient at a fixed distance from the eye dependent on the J size being read.
The Name of the Rose fifty-six rooms. Each room has a scroll containing a verse from the Book of Revelation. The first letter of the verse is the letter corresponding to that room. The letters of adjacent rooms, read together, give the name of a region (e.g. Hibernia in the West tower), and those rooms contain books from that region. The geographical regions are: Two rooms have no lettering - the easternmost room, which has an altar, and the central room on the south tower, the so-called "finis Africae," which contains the most heavily guarded books, and can only be entered through a secret door.