Visual benefits and adaption problems of progressive glasses
Shortcomings of lined Bifocal glasses
Not long ago, people had to wear conventional lined glasses if they had presbyopia and other near vision problems. It is true that those glasses have benefited them a lot. However, just because of their characteristic-lined, there are some separated vision areas in each pair. Therefore, some wearers can not get used to radical vision change with those glasses. Or some of them will suffer from very serious dizziness or headaches. But once the technology permits, such problems can be solved. And with the development of progressive glass technology, some ideal products for those problems come into the market- progressive glasses.
Adapt to progressive glasses and enjoy their benefits
Generally, progressive glass lenses are totally different from traditional lenses, for there is no evident division line that can be found on them. Those lenses are meticulously designed and wearers will find that vision change is very natural, never to be radical. Therefore, wearers would think that those progressive glasses are really good alternatives for them. Once they have got used to them, they will find that the vision is so perfect that they may feel no glasses on their faces. In detail, people who use progressive eyeglasses can gain a more natural correction, compared with using lined bifocals or trifocals. In exact words, progressive lenses are true multifocal lenses because a wide range of powers are arranged in a single lens seamlessly and smoothly. There is no abrupt or sudden power transition as occurs in bifocal or trifocal lenses. Users of progressive glasses can enjoy a “corridor” of optimum vision at all vision distances, ranging from the distance, the intermediate to the close-up. The bothersome condition called “image jump” caused by lined bifocals or trifocals will no longer appear.
However, there is a problem that almost all people will have to spend some time to get used to them. The younger people will spend less time than those older people and new wearers will also adapt more quickly than other regular users. What are the exact problems during the adaption period? For new users, visual aberrations will occur in the peripheral part of the progressive lenses. This condition is particularly obvious when the user looks down and focuses to the far right or left. The reason is that a progressive lens has more peripheral area at the bottom half. It is still worth reminding that quick head movements should be restricted, or otherwise a sensation of “swim” may develop. People who have strong RX of presbyopia usually take more time to get adapted to a pair of new progressive eyeglasses. Fortunately, modern lens technologies have enabled nearly everyone to get used to progressive lenses.
Technologies contributing to progressive lenses
Progressive glass lenses are widely accepted and very popular among wearers of all walks of life. The reason is very simple- much more advanced technology and much better results. However, there is a problem that such lens is much more expensive than ordinary lenses. On one hand, such a lens must be fitted in very accurate ways and manufactured meticulously. This requires highly of the opticians and the related equipments. On the other hand, the materials used to make them are the results of the latest technologies and techniques, so as to make sure that wearers feel natural with it.
Of course, some people can not afford progressive glasses, though they wish to have one badly, especially, some young people with low income. But this does not mean that those glasses can not be accessed. There is progressive glass insurance that can help reduce their burdens. And many insurance companies have gained very large market share in such services.
All in all, progressive glasses are much better alternatives than lined bifocal glasses to some extent.
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