About this document
Understanding Bifocal Image Jump by PAM ALVARADO is a document available to read on EtoBox.
The document discusses image jump and displacement that can occur with bifocal lenses. It explains that these issues do not occur with progressive addition lenses. It then provides background information on lenses acting as prisms, the two types of bifocal add segments (round top and flat top), the location of the optical center in different lenses and add segments, and Prentice
- Author
- PAM ALVARADO
- Language
- EN