According to statistics, hundreds of thousands of people lose their eyesight annually in the world. There are a lot of reasons for this: the impact of negative factors on the eyes, various diseases and the like.

In order to prevent vision loss, even at an early stage, it is necessary to check its acuity. There are many methods for checking visual acuity, but the most common is the check using a special poster with letters. And do not forget that it cannot be done independently, since the thickness and height of the letters is certain. In addition, it is necessary to visit only a proven ophthalmologist who has developed a positive reputation over the years. This is necessary in order to avoid getting into the tricks of scammers who, under the guise of providing services, seek visitors to get money.

The cabinet should be bright, but the light should not cut the eyes. And nothing superfluous except the table should be on the wall. The correct location of the table in the office also play a role. It should be located opposite the window so that light falls on it. The very vision of the visual acuity is as follows. The patient sits on a chair in front of the table, the distance between them should be at least 4-5 meters. At the direction of the doctor, one eye first closes with a special flag, and the patient begins to read letters. They are also located in a certain sequence, in an increase in. That is, large letters are in the upper lines, and they are already decreasing to the bottom. It is proposed to read letters in a chaotic order, and it takes at least a minute. The same operation is done with the other eye.

Based on the results of the audit, the doctor makes a conclusion. If necessary, treatment is prescribed in the form of medicines, drops and injections in the eyes. In rare cases, operations are prescribed, but after a detailed inspection. Thus, checking visual acuity helps at an early stage to identify the disease or avoid it.