The progressive lenses can provide sharp and clear vision at all distances. They are ideal for both a correct presbyopia and disorders such as hyperopia, astigmatism or myopia. However progressive lenses require an adjustment period which can sometimes, rarely be prohibitive.
Progressive lenses for presbyopia.
The Presbyopia is a natural evolution of the view. With aging, the lens reduces the flexibility and capacity of accommodation down. Result, from 45, near vision becomes difficult: it reaches out to read, thread a needle becomes difficult and the need to increase light to read.
What to do? Wear simple glasses with magnifying lenses, or recourse to progressive, which have the advantage of simultaneously correct near and far vision. This is ideal for people who are in addition to presbyopia other visual defect (myopia, hyperopia and astigmatism). In other words, with one pair of glasses, one can see almost as well from a distance.
Indeed, progressive lenses have a power that ranges from distance vision at the top of the glass and near vision in the lower part, uninterrupted view as is the case with bifocal lenses (bi-focal ) or tri-focal. So eye vision correction is not required if you uses progressive lenses while having little visual defects.
That’s why bifocals (or even tri-focal lenses with an intermediate correction area) are now less used in favor of progressive lenses. Indeed, some people cannot adapt to the open boundary between areas of different corrections.
That said, progressive lenses also require an adjustment period, or longer depending on the person because they need to change his ways (for example, move more in the eyes instead of his head to see in front, but it ‘ is the opposite to see on the sides). And while it’s still uncommon, some do not get used at all.
So how do you know if you can get used to progressive lenses?
The answer to this question is important because buying a pair of glasses can be very expensive! But it is very difficult to know what glasses are suitable for you. Here are our two councils.
1) Above all, take your time and start by talking with your optician, who will present the different types of glasses and the new generations of progressive lenses. Then remember that the horse and the settings made by the optician (centering in particular) are also essential. Precipitated no choice, take time to think.
2) Choose an optician who offers a guarantee of adaptation. This is the first question to ask. From there, you are guaranteed that if you do not get used to your glasses progressive after several weeks and several setting changes from the optician, you will be able to change lenses.
In conclusion, the choice of the optician is very important!
It is advisable to choose good optician for choosing eye glasses and a good eye hospital for getting any eye care treatment.