Certainly, buying in the store next favorite pair of contact lenses planned replacement, you saw in the catalog section of "Traditional" lens. It's not hard lenses, as you might think (and not already massively produced), and the same soft, but with its own peculiarities, the main of which is a replacement between 6 and 12 months. Those who wear "phony" probably can't imagine that this is possible.

However, the production of conventional lenses today though has decreased, but not stopped, because they have a lot of fans. First of all, it is older people, because the familiarity with contact lenses they began with traditional lenses a few decades ago other. Users are so accustomed to such optics, I don't want to change it. And here, surprisingly, now traditional lenses began to pass those who had used more modern correction. Let's look at what attracts people to traditional lenses.

• Cheapness. This is the main advantage of extended wear lenses. After reading here http://contactlinza.com.ua/contact-lenses/traditional.html with the price of traditional lenses, you make sure to buy them much cheaper than modern. Still, the lens for 12 months is like two one month. But before you rejoice at the prospect of save on the purchase of such lenses, be aware that they need to buy more serious cleansers (more on this later).

• • High strength. Traditional lenses are thicker than modern, so to damage them much more difficult. About does the thickness of the comfort, users ' opinions diverge: someone comfortable in thin, someone- in such. All, of course, depends on individual perceptions and the structure of the eye.
• • Visual acuity. The relative, however, it is believed that due to a particular type of production method (turning) traditional lenses give best focus.

The pros, as you can see, quite large. But without the drawbacks, alas, is also not done.

• • Low permeability – the main drawback of traditional lenses that they do not what to sleep, even Napping is strictly prohibited. "Capacity" for oxygen transmission of these lenses enough to comfortably wear them for about 8-10 hours, no more.

• Thorough clean-up. Given the long period of using the traditional lenses, it is not surprising that they need more complex care. First, not all multi-purpose solutions for daily rinsing and keeping fit (you can choose HERE). Secondly, once a week they need to be placed in a special enzyme solution. The accumulation of salts and the possibility of developing eye infections still higher than when wearing replacement lenses. So many people use traditional lenses less than they calculated on the fact: the savings is still good, but the health risk is minimized.