Who are Appropriate and Inappropriate to Wear Bifocal and Progressive Eyeglasses?
Gradually, the bifocal and progressive eyeglasses have become outstanding among all kinds of eyeglasses. They are a kind of new scientific and technological product. On a small lens, there are several diopter prescriptions, which is quite different from common lens that only has one diopter prescription. On bifocal and progressive lens, there are three visual fields from top to bottom for far, middle and near distance. In the middle, distance, the prescription gradually rises from far-distance visual field to near-distance visual field. Hence, wearer is able to clearly see scenery in any distance only by moving eyes and head. While the bifocal and trifocal eyeglasses just can see thighs in two or three specific distance. Therefore, a pair of bifocal and progressive eyeglasses can correct both nearsightedness and farsightedness, and be used as several pairs of eyeglasses at the same time.
Well, are the bifocal and progressive eyeglasses suitable for all wearers? Who are appropriate and inappropriate to wear them?
First, the presbyopia sufferers are suitable to wear the bifocal and progressive eyeglasses. According to the research, in America, there are four million people, especially middle-aged person, who have the trouble of presbyopia, which is different from farsightedness and nearsightedness. Generally, common presbyopic eyeglasses have the problem of image deformation and visual boundary, which make the wearers feel uncomfortable and confused. However, the bifocal and progressive eyeglasses do not bear theses problems. There is no boundary on its lens, so the surface of lens is the same with common lens. Its unique and novel design of lens makes presbyopia wearers more conveniently and comfortably to watch in various distance.
Second, there are many people who need near-distance work and dislike to change eyeglasses for different occasions. Such people can wear the bifocal and progressive eyeglasses. For example, if people cannot see words or pictures when reading or writing, they can wear a pair of bifocal and progressive eyeglasses to help them.
Next, some workers in special fields are not suitable to wear the bifocal and progressive eyeglasses because the design of bifocal and progressive lens is special — its upward areas for far-sighted while the downward for near-sighted. These people include librarian, pilot, electrician, construction laborer, and so on.
People who have obstacle in sport are also inappropriate to wear such eyeglasses. The obstacle in sports is mainly the defect of balanced ability, such as carsickness, seasickness or other similar dizzy symptoms. It is difficult for such people to adjust the bifocal and progressive eyeglasses. Hence, theses people should be cautious if you want to buy a pair of these eyeglasses! Meanwhile, this note is also true of the people who are sensitive to the change of diopter.
Moreover, the bifocal and progressive eyeglasses are not suitable for people who have a bad astigmatism.
Are you the appropriate person? If you are, try to order a pair of bifocal and progressive eyeglasses now! Surely, a new and bright visual field is waiting for you!
