We love this little optical trivia Eye Need to Know questions – so what is MBS? Is it a disease, an eyewear line? Most of you probably know….
MBS: Minimum Blank Size: The smallest lens blank that can be used and still cut out to fit a frame. Eyewear size and patient pupillary distance will both effect the minimum size that can be used. That’s why we need those handy dandy lens cut out charts that the lens vendors provide. Also a good opportunity to demonstrate to your optical customer, why it is so important to measure the frame, the PD etc. for their specific prescription frame and lens choice.
The lens vendors web sites are good resources for information. We particularly like Vision-Ease as the website has a Product Specifications page that is easy to navigate with technical tips, specifications for all lens products and materials including VCA Formatted Lens Description Standard (LDS) Files
- Lens Data Specifications (Complete List)-Excel
- Lens Data Specifications (Complete List)-Text
Signet Armorlite has a nice new website for their Kodak Lens as well, again very easy to navigate with lots of technical information.