Three types of multifocal lens

Multifocal lenses are lenses with "multiple centers of focus". People may suffer from more than one vision error or several vision problems in different situations. Without the invention of multifocal lens, eye wearers must keep several separate pairs of glasses for different vision purposes. For example, a first one is for myopia, a second one for hyperopia, and even a third one for computer working. Now, multifocal lenses can solve all these vision problems within a single pair. How amazing it is!

Multifocal lens is just a general concept. There are actually there types of multifocal lenses: bifocal lenses, trifocal lenses and progressive lenses.

Bifocal lenses are the most popular form of multifocal lenses. You can consider a bifocal lens just as a multifocal lens with only "two points of focus". They allow people to see things in the distance as well as close up. This type of multifocal lens is suitable for people with both myopia and presbyopia. One of the most famous people was Franklin, who was also the father of initial bifocal lenses. Statistics show that more than half of the people who wear eyeglasses wear these "two points" multifocal lenses.

Another form of multifocal lenses is trifocal lenses. In similar, trifocal lenses have "three points of focus". This type of multifocal lens features three vision correction functions. They have medium viewing capability, in addition to distance viewing and close reading possessed by bifocal lenses.

The third form of multifocal lenses is progressive lenses. This type of multifocal lens has so many focal points that it leads to a more true vision correction solution. Progressive lenses also remove the visible line on bifocals and trifocals, making the lenses more natural and achieving aesthetic performance. Of course these multifocal lenses are more complex in design so that they are more expensive.

Affordability of Contact Lens

he growing number of people feel shy away from choosing the contact lenses because some of them think that they cannot buy such a expensive luxury. It is possible to make the monthly lenses affordable by many contact lens firms. So the many disposable contact lens firms provide the discounts for the customers by promotion. Other producers provide the cheap contact lens through the internet marketing which can save the sales cost, making more people can buy the contact lens.

The most of customer like to take care the quality of the contact lens, because of the importance part of the adapting the process. Customers should know their target, improving the social relationship by not choosing the glasses.

When the customers buy the multifocal lenses ,they should consider the money, they would choose the contact lens is cheaper in the market selling for the different color for different people with different eyes. They understand they can get the benefit from the contact lens, such as more beautiful eyes and more comfortable. So the firms should think the environment according to the customers with different eye color could provide a better affordable choice changing their face.

But number of people follows the rules for toric lens choice before they consider the contact lens affordability. There are some hazards in the firms that they should meet the bad selection when they buy and wear the contact lens.

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