What Are Trifocal Glasses. Up to 20 cash back Trifocal lenses are lenses with three reading areas that are separated by a visible line which distinguishes these lenses from the new progressive lines which do not have a visible line. The higher the ADD power on a RX prescription the.
It can give you clear eyesight up-close far away and in between. This separates the lens into three distinct prescriptions. 9900 Trifocal lenses provide correction for near intermediate and distance vision and for astigmatism if needed.
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Theyre most often used for jobs and tasks that require three focal. Card playing and staring at the computer screen fall within this range of vision. Close-up reading is a common example. Correct for three fields of view distance intermediate and near vision.
