Rigid contact lenses - advantages and recommendations
Few people are familiar with such an invention, as hardcontact lenses. It sounds a bit scarier than, for example, soft lenses. Although it does not seem at first glance, hard lenses miss oxygen better than the most famous soft analogs. Many prefer to use silicone-hydrogelic specimens, which are known for their safety, but they also pass less oxygen through themselves than hard lenses. Although most people are forced to use just such lenses for health reasons.
Another advantage that toughcontact lenses - providing clarity of vision. They are also more wear-resistant, which means that they will last longer. At a cost, they are cheaper than their counterparts.
Indications for use
It is recommended to use rigid contact lenses, if the use of soft lenses does not bring any effect. And it happens in the following cases:
- At the person the raised requirements to quality and visual acuity. As a rule, people who work with operating surgeons, drivers, jewelers, etc. make high demands on vision.
- With the detection of astigmatism. With such a disease, soft lenses are unable to give 100% vision, since the very shape of the cornea changes.
- If the form of keratoconus is changed.
- In the period after the correction of vision bysurgical intervention (such operations as laser correction of myopia). It happens that patients are not even able to wear lenses after the operation, and they are prescribed glasses.
Rigid contact lenses. Rules of operation
How to store hard lenses for the eyes and take care of them
Like soft lenses, tough ones are put right oncornea, so they require thorough cleaning and care, as well as compliance with all operating rules. However, caring for stiff lenses is less difficult than for soft ones, as they do not get infected with fungi and other microorganisms.
Keep them in a specially equippedcontainer filled with disinfectant solution. Compliance with this rule is very important, since the solution disinfects the lenses, and the container reduces the risk of deformation.
The most difficult thing about using LCDs is theirinitial selection. After all, each lens should ideally match the surface of the eye cornea. In this case, special equipment is used, so the selection is only possible with a qualified specialist, even if they are decorative lenses for the eyes.</ p>>