Description
Basic requirements for test charts designed for either internal or external illumination, employing English (Roman) capital letters to determine the distance visual acuity. Provision is also made for the single letter C (Landolt or broken ring) and the single letter E (illiterate E) in various orientations.
All current amendments available at time of purchase are included with the purchase of this document.
Product Details
- Published:
- 01/26/1968
- ISBN(s):
- 0580000397
- Number of Pages:
- 12
- File Size:
- 1 file
- Product Code(s):
- 862695, 862695, 862695
- Note:
- This product is unavailable in Ukraine, Russia, Belarus
