Health, Vision
How to choose a lens for the eyes? Tips of the ophthalmologist
According to recent studies, to date, more than 135 million people around the world have various vision problems. The most common are:
- hypermetropia (hyperopia);
- Myopia (myopia) ;
- cataract;
- glaucoma;
- night blindness;
- retinal detachment;
- Astigmatism.
In the vast majority of cases, surgical intervention can not be avoided. However, to date, people who suffer from hyperopia or the reverse of myopia may not resort to emergency measures. The problem is simply solved with glasses or contact lenses. And more and more people prefer the latter. What is their advantage, how to choose lenses for the eyes, what exactly should be paid attention to when choosing, will be considered in this article.
Advantages of contact lenses
Not all people agree to wear glasses. Especially it concerns children and teenagers who are afraid of the nickname "ochkarik". In this case, poor eyesight entails many problems. People who do not see well enough often get into curious situations when they do not recognize their friends on the street and do not greet them. In addition, with poor vision, it is likely that you will miss the right bus and not see any object on the street. For many, glasses are absolutely unacceptable. And it is for this category of people that the best way out of the situation is to wear lenses that have undoubted advantages. They do not distort the dimensions and do not reduce the field of view, like glasses. In this case, lenses allow you to lead an active lifestyle, erasing the difference between people with good eyesight and shortsighted.
In addition, not all people can pick up glasses that emphasize individual dignity, while contact lenses do not require any special correction. Also, no weather conditions will not interfere with the wearing of lenses, while glasses can fog or get wet, thereby reducing the level of visibility.
How to start choosing contact lenses
The basic rule, which should be taken into account when choosing lenses, is that only an ophthalmologist can help them to choose them correctly. Therefore, in no case can you buy them without consulting them. It is very important to know how to choose lenses for the eyes of specialists. It should be remembered that there are contraindications to their wearing:
- Various inflammatory processes;
- strabismus;
- glaucoma;
- subluxation of the lens;
- Various allergic reactions.
In any of these cases, the wearing of contact lenses will have to be abandoned. However, the correct selection of lenses will bring a lot of positive emotions and a sense of comfort.
The main criteria for the correct choice of contact lenses
Having made a firm decision to start wearing contact lenses, you should know which basic criteria should be considered when choosing them. It:
Is the radius;
- diameter;
- location;
- material of manufacture.
Tips of the ophthalmologist
The need for careful examination of an ophthalmologist is due to the fact that the correct selection of lenses is crucial for eye health. When diagnosing vision, the doctor determines such parameters as:
- curvature of the cornea;
- intraocular pressure;
- Dimensions of diopters;
- visual acuity;
- the state of the muscles of the eye.
Indications for wearing lenses
In addition to a person's personal desire, there are certain indications for wearing contact lenses. They may be:
- Cosmetic (changing the color of the eye due to various defects);
- professional (when wearing glasses is contraindicated in certain types of activities);
- Medical.
Medical indications for wearing lenses
The most common indication for wearing contact lenses is myopia of varying degrees. In this case, they contribute to the improvement of binocular vision and accommodative apparatus, which is impossible with the wearing of glasses. Thus, the greatest correction of myopia is possible with lenses.
Another equally common eye disease that corrects good lenses is astigmatism. In this case, it should be borne in mind that the choice of lenses is necessary with due regard for the disease, since the usual can worsen the state of vision. If the selection was carried out correctly, this will guarantee a high quality of vision.
The wearing of lenses by people suffering from presbyopia, or in other words, senile hyperopia, requires the use of complex designs, which does not always guarantee sufficient comfort.
With keratoconus, lenses are the best way to improve the quality of vision. With this disease, the cornea takes the form of a cone, which can not be corrected with the help of glasses. At the same time, properly selected contact lenses significantly reduce the level of optical changes, which contributes to a high corrective effect.
With each of these diseases, the question of how to choose lenses for the eyes, strictly individual and requires careful compliance with all the features.
Basic requirements for contact lenses
When deciding to purchase lenses, the feedback of people who have already used them is of no small importance. However, if you want to get a really good product, you need to pay attention to the following parameters:
- level of oxygen permeability;
- degree of moisture content;
- terms of wearing;
- purpose.
Terms of wearing lenses
One of the most important indicators of the correct wearing of lenses is the time of their use. They are divided into lenses:
- daily replacement;
- planned replacement;
- the traditional period of wearing;
- prolonged period of wearing.
Daily lenses are a one-time product, the life of which is one day. For the price they are more expensive than other options, but at the same time they guarantee the health of the eyes. In addition, daily lenses do not require any special care and do not give any complications. The most common brand of this category are contact lenses 1 day.
The term of wearing a lenticular replacement lens varies from two weeks to three months. It is this type that prefers the greatest number of people. Such lenses offer a sufficiently high level of oxygen permeability and moisture content. Optimum choice in this category will be two-week lenses.
Lenses of prolonged wearing, which are called silicone hydrolysis lenses in another way, allow their operation for more than a day, including the time of sleep. However, despite the fact that such lenses saturate the eyes with oxygen and during sleep, ophthalmologists do not recommend sleeping in them without an urgent need. Knowing the characteristics of each type of product will help you choose the right lenses.
Rules of care for lenses
Regardless of the type and timing of lens wear, careful care is required. Having decided to start wearing contact lenses, you should consider choosing a good liquid for them, which will not cause eye irritation or dryness. If the choice of liquid is wrong, the time of wearing the lenses is sharply reduced, and the risk of various complications increases significantly. That is why it is necessary to give due attention to the acquisition of a good fluid for contact lenses. In addition, every time, placing the lens in a special container, you need to change the liquid so that they pass through cleansing and disinfection.
It is also very important to observe the rules of hygiene when handling contact lenses. Wash hands thoroughly with soap and water every time. It is strictly forbidden to transfer your lenses for carrying to another person, nor to take strangers. It is also very important to observe the terms of their wearing and in time to acquire new ones.
Possible problems for beginners when wearing lenses
Having made a firm decision to start wearing contact lenses, you should be prepared for the fact that some feelings of discomfort are possible, especially at the initial stage. This is primarily an adaptation to a foreign object in the eye, which in all passes in different ways. In addition, many experience difficulties in the process of putting on lenses, as well as removing them. At the same time, if you decide to start wearing lenses, reviews that you can hear do not always prepare for all these difficulties. Therefore, it is desire and patience that will become the key to the successful application of this corrective product.
Symptoms that should stop wearing lenses
Despite all the advantages of contact lenses, all people are different, and they can not go far. It is quite possible the occurrence of various reactions that require the immediate abandonment of the corrective product. As a rule, these are various manifestations of allergy and constant dryness in the eyes. If the problem is not solved when changing lenses, then none of them are suitable and will have to be abandoned.
Thus, it is wrong to think that lenses are a panacea for poor vision. Having learned how to select lenses for the eyes, having carried out all the necessary examinations and stopping at any option, you should be prepared for the fact that the adaptation process will not go as smoothly as we would like. It should be remembered that the process of making lenses is constantly being improved. And even finding the most suitable, all the same in the course of time it will be necessary to change them to more modern and qualitative ones.
Similar articles
Trending Now