Contact lenses: a review of their merits and demerits

Wearing contact lenses has become very fashionable lately. Still would! With their help, you can not only adjust your eyesight, but also change, for example, the color of your eyes. Advanced youth gets lenses for the pleasure of suddenly becoming blue-eyed or black-eyed. But still, in the first place, this remedy is necessary for people with vision problems.

Before buying lenses, buyers usually have many questions and doubts, which today we will try to consider in detail.

Contact lenses: a review of deficiencies

One of the common opinions about problems with wearing contact lenses is the fear that they can "roll" behind the eyelid and they will not be able to be pulled out. Such fears are groundless: even if you begin to rub your eyes, "armed" with this optical device, it will only move, but far beyond the eyelid, and even so that it will be difficult to get, "hide" can not. There is not so much room for this.

But the excitement about the fact that the contact lens can fall out, and it will have to be spotted somewhere on the floor, has a basis. True, speech in this case is about the first generation of this correction tool, rather hard and not very convenient. It really could leave its place as a result of shaking or some awkward movement. Modern soft contact lenses (especially silicone-hydrolyzers) have a high degree of flexibility and proximity to the tissues that form the eyeballs. They, as a rule, sit like pouches, and do not fall out.

Contact lenses: recall of caring for them

Lenses in no case can not be washed with ordinary water, even very high quality. It is non-sterile and can not therefore be used for such a procedure. Along with the particles of water that remain on the surface, substances that cause inflammation, irritation or swelling may enter the eye. In addition, minerals contained in water, even after a single wash, can settle on the lens and change its optical characteristics.

Store this tool for vision correction only in the "native" container! No random capacities are suitable for this! In the foreign container on the walls contains an unremovable coating of the substance that filled it earlier. And getting his particles into the eyes can cause very serious consequences.

How to use contact lenses

The feedback that lenses are suitable for absolutely all human activities is incorrect. So, for example, you can swim in them only using sealed glasses or a mask, and visiting a sauna or sauna in them is completely counter-indicative.

But, contrary to popular belief, you can wear lenses in frosty weather - it does not harm them.

How long can I wear contact lenses?

Some believe that nothing terrible will happen if you use such a convenient device for longer than the prescribed time. After all, the savings are obvious! But the fact is that the lens is an object that is very tight against the surface of the eye, so any, even imperceptible, change in the state may pose a threat to the shell of such an important organ.

The term of wearing this optical device is calculated by specialists depending on the characteristics of the source material: its humidity, shape and gas permeability. And only a clear observance of the use of the lens allows you to avoid problems arising from the time that comes on them on the fly.

With accurate selection and compliance with the rules when wearing contact lenses, they will not harm your health and, in particular, your eyesight.