Many people who have been wearing glasses for a long time are thinking about changing them to lenses. However, this is a whole science. Read below to learn how to choose contact lenses.
First of all, you need to visit a specialist, because knowing only the indicator of myopia or hyperopia is not enough. An ophthalmologist will make all the necessary measurements and determine the individual characteristics of your eyes: the microflora, the composition of the lacrimal fluid, the sensitivity of the cornea, and much more. Answer the doctor's questions clearly and accurately, because you can choose contact lenses for your eyes only after finding out all the details - up to the general state of your he alth and the features of your work. You can use the services of cabinets located in many optical stores.
Contact lenses for eyes are hard and soft. Most people prefer the latter.
How to choose contact lenses: softness and hardness
Soft subdivided into:
- Low hydrophilic - less than half the moisture content. They are more durable, less prone to damage.
- Highly hydrophilic - more than halfmoisture content. Less durable, protein deposits accumulate on them faster.
Soft lenses can be changed either infrequently or frequently. The former must be washed in a special solution, and the latter should be thrown away immediately after use.
Soft lenses are comfortable to use. With correctly selected parameters, they are not felt. However, they also have a negative side. A large number of pores can promote the development of microorganisms.
Hard lenses are prescribed for people with eye diseases. They perform both a therapeutic function and a vision correction function. They are not very comfortable and quite noticeable, but they do not have pores, and therefore access to various microorganisms is closed.
Rigid lenses are selected after a thorough examination of the characteristics of the patient's eyes. Their stiffness varies and should be selected based on the stiffness of the human cornea.
How much do eye lenses cost
Their price can be very different. For example, you can buy a set of lenses that rarely need to be changed for an average of 300 rubles. In addition, you will need a solution worth 200 rubles. Prices are approximate, and it is important to consider what prescription your doctor will write you. The main thing to remember is that too low cost, as a rule, speaks of the low quality of the goods.
It is worth noting that everyone chooses the option that is convenient for him. Lenses that need to be changed daily tend to be more expensive. But for the infrequent change option, care is very important to prevent the reproduction of microbes.
Contact lenses for the eyes can perform not only a corrective or therapeutic function. Masquerade and color will help change the image. However, it is important to know that they do not transmit light well, so you need to change them to transparent ones before driving a car, for example.
In addition, doctors recommend wearing lenses no longer than 4 hours, be sure to remove them at night and sometimes give your eyes a rest for a few days - during this time you can wear glasses.
Now you know how to choose contact lenses. Think quality, but also consider price. He alth to you!
