Progressive eye glasses are glasses which are always applied to correct presbyopia and other disorders of accommodation. Just as its name implies, the progressive lens is of a gradient of increasing lens power, where there is no addition power at the top while a maximum addition power at the bottom. The lens power is determined by the specific eyesight condition of a specific wearer. Compared with the bifocal and trifocal glasses, progressive eye glasses avoid the discontinuities, or say image-jumps, in the visual field, which maybe result in discomfort and dizziness of the wearer.
Due to this feature, progressive eye glasses are more popular among the elders, because wearing them, they would be no longer required big adjustments to head position since the length of the progressive power gradient on the lens surface is shorter. However, the problem is that progressive eye glasses usually price high. A pair of ordinary progressive glasses costs at average 400 US dollars, therefore, some elders state that they can not afford a pair and it is not worth so much money. Thus, there are a small proportion of elder people in US have enjoyed the convenience brought by progressive glasses.
Now here, I’d like to announce a good news that you can achieve your dream of enjoy the convenience with on line progressive eye glasses.
Since its inception in 1950s, on line progressive eye glasses develops rapidly. Of course the biggest attraction of on line progressive eyeglasses is the low price. One is able to buy a pair of progressive eye glasses at a price about one fourth of the those brought in an entity shop. It is really a surprising price, right? But then, some people may doubt the authenticity of this on-line shopping behaviour. The following two points are able to convince those people:
First, on line progressive eye glasses are of low cost, because of the eliminating fee on renting, fitment and payment to the shop assistants or so. On the contrary, those expenditure are excluded on sales on-line. Not to mention the fee on renting and fitment, two or three persons are enough to handle the whole selling process. Second, on line progressive eye glasses are often directly sold from the factory, therefore, unnecessary expenditure on intermediary is eliminated as well.
Therefore, if you are a person who has dreamed to wear progressive glasses but have never tried because of the high cost, you can try to buy progressive glasses on line. You are believed to be satisfied with your choice and the glasses you finally get.
What I would like to remind you at last is that before you go to shop on-line, you should firstly get a prescription in a licensed and professional glasses shop. This is important, and you should never belittle this procedure, because the ophthalmology and prescription of the progressive glasses needs high and technology so as to provide you the accurate lens power suitable to you most.