Thread: What are trifocal eyeglasses?
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Old 08-28-2009, 03:27 AM
Atkins glasses Atkins glasses is offline
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Default What are trifocal eyeglasses?
I have only heard about single vision and bifocal eyeglasses? bifocals have two focal points, one for far and the other one for near, want are trifocal leses? Do they have a special focal point for looking into the sky?
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