Tag: Bifocal
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9 Essential Glasses Terms You Need To Know
Buying a pair of specs can sometimes be as tricky as a challenge on the Crystal Maze. Yet, you can deftly weave your way through those obstacles – that is after you’ve made an appointment to see your optometrist. In essence, an optometrist will open a window into all things concerning your prescription. They will…
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Beetles Are Able to Grow Special Bifocal Eyes!
Go on, I dare you to say Beetlejuice three times – but before you cower behind the sofa, you might want to peel back your eyes. It turns out that the humble diving beetle has the ability to grow bifocals all by themselves. The complexity of this appears to be mind boggling in its own…
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What Are Rear Surface Progressive/Varifocal Lenses?
A Brief History of Progressive/Varifocal Lenses The first commercially available Progressive (Varifocal) lens now referred to as the Varilux 1 was introduced by Essel (now called Essilor) in the early 1960’s. There have been considerable improvements in both design and production technology since, and today there are many different designs of progressive lens available in…