Crystal Vision CR39 Trifocal Lenses

Crystal Vision CR39 Trifocal
Type: Trifocal (With Lines)
Material: CR-39 (regular plastic)
Rimless: Not Compatible

Standard plastic CR39 lenses for trifocal vision distance viewing means that the reading area has a half moon shape with a "flat top", in the bottom area of the lens.  The trifocal lens has three vi

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Crystal Vision plastic CR39 lenses for trifocal vision distance viewing means that the reading area has a half moon shape with a "flat top", in the bottom area of the lens.  The trifocal lens has three viewing areas, and the magnification area has two viewing areas, one for reading and one for intermediate distance.  The standard CR39, flat top 28 trifocal has a reading area that is 28mm wide at the top.  This is a good choice for prescriptions up to +/-3.00 sphere; above that, we would recommend a higher index lens in order to reduce the thickness and weight of the lens.  This lens is available in the following range: -6.00 to +2.75 sphere, -4.00 to +3.00 cylinder, and up to +3.00 add (prism and slab off excluded).  Crystal Vision Lenses are top quality lenses at a reasonable price point.

Crystal Vision plastic CR39 lenses for trifocal vision distance viewing means that the reading area has a half moon shape with a "flat top", in the bottom area of the lens.  The trifocal lens has three viewing areas, and the magnification area has two viewing areas, one for reading and one for intermediate distance.  The standard CR39, flat top 28 trifocal has a reading area that is 28mm wide at the top.  This is a good choice for prescriptions up to +/-3.00 sphere; above that, we would recommend a higher index lens in order to reduce the thickness and weight of the lens.  This lens is available in the following range: -6.00 to +2.75 sphere, -4.00 to +3.00 cylinder, and up to +3.00 add (prism and slab off excluded).  Crystal Vision Lenses are top quality lenses at a reasonable price point.

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$119
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      Sphere Cylinder Axis ADD
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