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Bio-focal typically refers to a type of lens that has two distinct powers: one for close-up vision and another for distance vision. This type of lens provides clear vision at multiple distances, making it popular for those with presbyopia or age-related vision changes.

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1y ago

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Who invented biofocal glasses?

Benjamin Franklin


What does biofocal mean?

Biofocal refers to a type of contact lens design that provides multiple focusing strengths within the same lens. This allows individuals to see clearly at various distances, such as near, intermediate, and far. Biofocal lenses are commonly used to correct presbyopia, a condition that affects the eye's ability to focus on close objects.


What is the difference between bifocal and multifocal contact lenses?

The difference between bifocal and multifocal contact lenses is that biofocal contact lenses do not provide so many different angles as multifocal contact lenses do. Biofocal contact lenses do not allow the user to see as good as with multifocal contact lenses.


What did Benjamin Franklin create?

Benjamin invented many things. Some of them are biofocal glasses. He didn't create electricity, but he was the first to discover and learn the truths about electricity. He also made metallic rods that protected homes from lightning. He was one of the Patriotics to sign the Declaration of Independence, which was a contribution, not an invention.


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When did Benjamin Franklin start inventing?

Benjamin Franklin invented the well-known lightning rod, the glass armonica (which is a glass instrument; many get this instrument confused with the metal harmonica), the Franklin stove, bifocal glasses, and the very flexible urinary catheter. note: Benjamin Franklin never patened his inventions.


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