The figures on this hand held eye chart are drawn so that the details (black lines & intervening spaces) represent closely the usual Snellen angle of one minute at the distances specified on the card. When this 5"x8" card is held at 13", the details of the figures subtend the visual angles equivalent to the Snellen fractions given at the end of each line. Printed standard on matte white card stock, which is best when used with the Western Optical Reading Card Holder, or available indivually laminated in a plastic finish. |
| Click any picture for a closer look! These optical & ophthalmic instruments are selected from our stock of thousands. If you don't see the instrument you want, please be sure to call (800) 426-9938. All images and descriptions Copyright © Western Ophthalmics Corporation 2010 All rights reserved. No portion of this website may be copied without express written permission of the owners. |