Contact lenses are the most popular means of vision correction. Recently, the market for these products has expanded significantly, so the consumer faces a serious problem of choice. How to choose lenses for the eyes, so they served for a long time and did not cause allergic reactions?
Frequency of lens replacement
Contact lenses are a traditional and planned replacement. The term of wearing the first is six months or a year. They require careful care. It is necessary to clean them only with the help of special enzyme tablets. Such products are better not to choose, as they very often do not justify the expectations of patients and do not satisfy ophthalmologists by modern indicators.
The replacement lenses are divided into:
- 1-day;
- 1-2 weeks;
- monthly replacement;
- 3 months.
All of them require enzymatic purification. To do this, it is better to use multifunctional solutions. In order to correctly choose the lenses of the planned replacement for the eyes, find out how long they can be worn continuously (only during the day or during the whole period), and also from what materials they are made. This will allow you to buy products that will not cause you dry eye syndrome and other side effects.
Toric lenses
Not so long ago, models appeared on the market that successfully correct astigmatism. These are toric lenses. They improve the quality of sight in people with such a defect better than special glasses. Do you know how to choose toric contact lenses for the eyes? Do not worry. They come in only two forms:
- Hydrogel - suitable for those who need lenses for day wearing, since they are not intended for sleep.
- Silicone-hydrogel - are recommended for primary patients who are prone to hypoxic diseases.
Where to choose lenses for the eyes?
Most lenses are sold in optics. But a large range of such products for increasing visual acuity is also available in online stores. Where it is better to choose lenses for the eyes? It is necessary to do this in specialized institutions where there is a qualified doctor-ophthalmologist. Only a specialist will be able to conduct a thorough eye study on all the necessary parameters and find out:
- the dioptric value;
- general condition of vision,
- curvature of the cornea;
- indicators of intraocular pressure ;
- how peripheral vision and eye muscles work.
After completing the survey, you can proceed with the selection of lenses, based on your own preferences.
Do not have the opportunity to visit an ophthalmologist? How can I choose lenses for the eyes without a doctor? This can only be done if you have the results of an initial examination! Contact lenses are a medical item, so you can buy them yourself when you already know which type is the most suitable for you.
How to choose colored lenses for the eyes?
Colored contact lenses are ophthalmic products that change the natural color of the eyes and give it special expressiveness. In addition, they can solve the cosmetic and psychological problems of patients with iris color defects or a thorn. In specialized optics it is possible to try on lenses of several colors. This allows patients to choose products that are
Before choosing a color lens for the eyes, it is worth checking out your vision, because in addition to the decorative function, they also have other possibilities. For example, if you suffer from nearsightedness (up to -8 diopters), they can be used to correct such an ophthalmic problem.
For those who have a bright sun causing watery eyes and a headache, you should choose for yourself colored lenses that absorb ultraviolet. On their packaging there is a special symbol in the form of the sun or the letter "UV".