Progressive lenses are becoming increasingly popular among eyeglass wearers. Also known as “no-line bifocals” these lenses hold more than one prescriptive power as in a bifocal or trifocals yet do not have the distinct lines of separation like the traditional bifocal lenses. The upper portion generally has the distance prescription while the lower portion holds the prescription for reading or seeing up close. The lenses allow a person who struggles with both presbyopia and another refractive error to have both prescriptions on and accessible at once. Sometimes, there is just the reading portion of the lens and the upper portion may not have a prescription in the lens at all. Each progressive lens has an intermediate area where the two prescriptive powers come together and help a patient look clearly about a foot away from him or her. Advantages of progressive lenses include aesthetics as well as a more natural feel. The progressive technology allows the differing powers of prescriptive strength to seamlessly flow together. The lens puts the right prescription in the natural place to look at the right distance. According to eye doctor totowa a patient can look across the room through the upper region, at the computer through the intermediate region and read the writing on the desk through the lower region. The transition to progressive lenses may be weird at first and take some time, but this is typical for first-time users. Peripheral vision can seem blurry to patients but a slight turn of the head can correct this blurriness.
