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Trifocal (With Lines) Lenses

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 most common trifocal lenses are designed with a half-moon shaped reading area in the bottom half of the lens, called a "flat top".   However, some people prefer the "executive" or “Franklin” style, in which the lens is bisected by two horizontal line across the entire width of the lens.   

Trifocal lenses are the most cost effective way to create a lens with three viewing areas.  Trifocal lenses are uncommon now, with the advent of progressive no-line lenses.  Trifocal lenses are a good choice for people that are looking for an economical alternative to progressive lenses.  Also, many people use trifocal lenses for close up work like fly tying, needlepoint, and other activities that require looking at detailed work.  Trifocal lenses are only available in the "flat-top 28" style.

CR-39 Plastic

Crystal Vision CR39 Trifocal
$119
Best basic trifocal on the market. Read More This lined trifocal has three viewing areas - Distance, mid-range and reading.  The half moon 7*28mm viewing area has two visible lines, and the distance area is above that.  Crystal Vision Lenses 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.  Crystal Vision lenses are made by one of the world's largest lens company making top quality lenses.  All Crystal Vision Lenses  are made in the U.S., to exacting specifications, in an Essilor laboratory, and we are able to offer them at a great price point.  This lens is a good choice for corrections up to +/-3.00, and it is available with a variety of options such as Transitions, UV protection, sunglasses or fashion tint, standard Anti-Reflective coating, and the top-quality Crizal Alize and Crizal Avance coatings.  Read less
Crystal Vision Trifocal Executive CR39
$229
Best "Franklin" style bifocal on the market Read More The Executive Trifocal has two visible lines that go horizontally all the way across the lens, dividing the lens into three viewing areas.  All Crystal Vision Lenses  are made in the U.S., to exacting specifications, in an Essilor laboratory, and we are able to offer them at a great price point.  This lens is a good choice for corrections up to +/-3.00, and it is available with a variety of options such as Transitions, UV protection, sunglasses or fashion tint, standard Anti-Reflective coating, and the top-quality Crizal Alize and Crizal Avance coatings. All of our lenses come with our Perfect Lenses Guarantee.  Read less