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Soft Contact Lenses

The contact lenses that are in use these days may be either yielding or hard. The softer ones are more good for the eyes and therefore they are becoming more and more popular. These lenses comprehend soft material, which is a impressed sign of plastic. This material contains much of wet. The combination of the plastic and the wet forms a jelly analogous material. This is very soft and when we put in the eyes, the eyes do not even bring into being that something is in contact with them.

The soft lenses:

Before the advent of the impressible lenses in the 1960's, the rigid lenses were in use since the last 120 years first they were made from glass but later a formative came into use for making the lenses. However, there were some disadvantages of the firm lenses. Therefore, efforts were going on at that duration to develop the soft lenses overcoming these defects.

Otto Wicherle first made the yielding lenses.

In these lenses, he made use of a hydro gel. Today silicone is an grave material for the manufacturing of the yielding lenses.

The advantages of the soft lenses:

The leading advantages of these lenses as the name would suggest is that they are impressible and therefore they provide better refresh to the eyes. The hard lenses would necessity some time for the eyes to become gratifying to them. While, the soft lenses do not require any duration for the eyes to become comfortable to them.

The next principal advantage of and aim of these lenses is that they have very good oxygen permeability. This is very of moment as without the oxygen supply

Moreover, we can also use two lenses on top of each other for more excellent correction of vision.

In joining to this, some of the soft lenses are also protecting from the ultraviolet rays of the day.

Disadvantages:

They are soft and therefore they are more frangible than the harder contact lenses. There is a danger of tearing or ripping of them.

Therefore, most of yielding lenses are disposable. This is because as they are soft they do not last lengthy. Therefore, it is important that we need to re-establish them after sometime.

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