This is an optical lens that is designed in a progressive style. If you are in your 40s, or even older, and you are having trouble reading fine print with your glasses, progressive lenses offer you a younger-looking appearance and other advantages over the line bifocal lenses your parents wore. With progressive lenses, no one has to know whether you are wearing glasses just for fashion or because your arms have grown too short for your to see up close.

• CR-39 progressive lens.
• Semi-progressive lens.
• Short corridor.
• Why progressive lenses?
• Bifocal and trifocal, or no-line-bifocal, eliminate visible lines of traditional bifocals and trifocals and hide the fact that you need reading glasses.
• Advantage of progressive lenses or bifocal and trifocals.
• Corridor of optimum lens power runs vertically down each progressive lens.
• You eyecare practitioner will take careful measurements of your eyes and eyeglasses frame in order to place the corridor in just the right location so your eyes can naturally access the various powers within the lens for comfortable viewing at all distances.
• Instead of bifocal and trifocal, the transition between lens powers within the lens is smooth and seamless.
• Letting you change focus from far to near and back again more comfortably, with no image jump.