What are progressive eyeglasses? Some people feel confused about the function of them for they do not have enough experience about presbyopia. Well, presbyopia are common in people who are older than 40. As our age grows older, you could not see things as clear as young. You may find that you should hold the book or the newspapers in an arm’s distance to get a clear vision which is the most typical symptom of presbyopia. So some people usually prepare the reading eyeglasses for long time materials reading. Unfortunately, if you are a nearsighted patient at the same time, you would feel really troublesome to change two pair of eyeglasses. One is for nearsightedness and one is for presbyopia. You would feel inconvenient about it. Progressive glasses are the good news for people who are suffering this annoying situation.
Progressive eyeglasses belong to the multifocal eyeglasses as well as the bifocals and trifocals. Bifocal lenses have only two powers: one for seeing across the room and the other for seeing up close for reading. However objects in between, like a computer screen or items on a grocery store shelf, bifocals are unable to remain a clear vision. Trifocals are also faced with many disadvantages. Progressive lenses more closely mimic natural vision for presbyopic people. Instead of providing just two or three lens powers, progressive lenses are true “multifocal” lenses which provide a smooth, seamless progression of many lens powers for clear vision across the room, up close and all distances in between.
Another advantage of progressive glasses is that it eliminates the problem caused by bifocals and trifocals known as ‘jump image”. What is “jump image”? When a bifocal or trifocal wearer’s line of sight moves across these lines, images suddenly move, or “jump.” Progressive lenses provide a more natural depth of focus than bifocals and trifocals. Because of the advantages progressive eyeglasses become more and more popular among people over age 40. Today’s progressive eyeglasses become more comfortable to wear and more easy to adjust to them.
Where can people get progressive eyeglasses? Most the optical shops provide such service for people. Or you can order a pair online. Online shops have a real attraction for customers with its low price. You can also enjoy the convenient of this online service. These online shops are worthy your try.
