Who invented bifocal lens

Bifocals are glasses meant for people that have difficulty focusing on both near and far objects. The top half of each lens is for seeing distance, and the lower half is for reading. Benjamin Franklin required glasses for most of his life, and began to need reading glasses to see close objects as he got older. He got tired of switching back and forth between two types of glasses, and came up with a simple way to solve the problem. He had the lenses for his up-close and distance glasses cut in half, and placed in the frame together.

The distance halves were on top, and the up-close halves in the bottom. Toggle navigation. Bifocals - History of Bifocals. Did Ben Franklin really invent bifocals? Why did Benjamin Franklin make bifocals? What did Ben Franklin invent when he was a boy? What is a lightning rod made of? Who discovered lightning? Did Benjamin Franklin invent the bathtub? Was Ben Franklin a vegetarian? What is the contribution of Benjamin Franklin?

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Having the advantage and ease of using two lenses at the same time, bifocal lenses also has some problems associated with them.

They can cause headache and dizziness due to sharp vision switch from upper to lower lenses. Adjustment to the small area of view offered by the reading portion of lenses may take time and user learns with time to move the head or book rather than the eyes. Users may also have problems while using computers as monitors are placed directly in front which can lead to unusual angle and regular movement of head resulting in muscle fatigue. This problem can be resolved by monofocal lenses while using computer.

Bifocals glasses were invented for the elders to help them in reading and people started thinking that they are only for elders but this is a misconception. It can help anyone of any age. Select a more youthful frame or a professional looking one.

Go for a different color other than insipid black frames. Choices have increased nowadays ranging from aluminum lenses to titanium ones. Many online optical stores are providing prescription glasses with quality. It has an enormous collection of bifocal glasses and stylish frames with excellent customer service and lowest prices and also offers bifocal lenses with UV and scratch resistant coating free of charge.

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