Converting a eyeglass a bifocal prescription to a reading prescription is a simple algebraic formula. Opticians are trained to solve these issues. Please see your local ABOC optician today. - Teresa Clay, ABOC - Integrity Vision Care. see us on Facebook.
1700
the eyeglass was made in 4 bc
Bifocal
I believe he was the man who invented the first bifocal glasses ever.
who invented the bifocal lenses
Benjamin Franklin
The bifocal is a type of eyeglass that has two distinct focusing regions. One is usually for distance, while the other is for reading.
Pompey lamb invented the first bifocal glasses ever and so that's how he was famous for his work.
It is lenses which Benjamin Franklin invented.
He invented bifocal glasses.
Benjamin Franklin is credited with creating the first bifocal eyeglasses.