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 How are bifocals used today?

Answer Prior to the invention of bifocals, people with presbyopia (both near and farsightedness) needed two pairs of glasses, one for reading and one for seeing objects in the distance, according to Firmo... Read More »
http://www.answerbag.com/q_view/2043222

Top Q&A For: How are bifocals used today

How long does it take to get used to bifocals?

Adjusting to bifocal eyeglasses will take longer than adapting to single vision glasses. Bifocal wearers can take many days to get use to a new prescription. Wearing your bifocals full-time can hel... Read More »
http://www.answerbag.com/q_view/2000278

How do bifocals work?

The first eyeglasses to correct vision were created in the Middle Ages. Lenses to correct farsightedness came into being in the late 1200s, while those to correct nearsightedness were developed in ... Read More »
http://www.answerbag.com/q_view/1979673

Has anyone ever had bifocals cause nausea?

I apologize Walt, looks like my Tatas cause blindness in some...but relax even if you can't see em anymore, I'll let you play Tune in Tokyo with em. You won't suffer from nausea after that.
http://answers.yahoo.com//question/index?qid=20090401161154AA0ZgRM

Can You Shade Bifocals?

Shaded lenses are available for bifocal glasses. Eyewear manufacturers produce shaded bifocal lenses that protect against UVA and UVB rays. Shaded bifocals look similar to sunglasses and do not req... Read More »
http://www.answerbag.com/q_view/2273171


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