Visual acuity - what do you know about this?

Probably, it makes no sense to talk about how normal a person's vision is to a person. And not only in his professional work. In everyday life, in ordinary everyday life, a person with impaired vision faces the same problems as at work.

Reduced visual acuity makes life uncomfortable. The danger is that if you do not go to a specialist (ophthalmologist) in time, you can miss the time to diagnose a serious illness that can lead to complete blindness.

Most often, a decrease in visual acuity indicates changes in the eyeball. For example, in farsighted people, the eyeball is flattened, and near the short-sighted people it is oblong. The ability of the lens to focus the resulting image is lost. Such changes are successfully adjusted with the help of glasses. For more than a decade, ophthalmologists around the world have been practicing laser correction for myopia. It is interesting that farsightedness in newborns is the norm.

With violations of certain functions of the brain visual acuity may decrease. People who suffer from migraine attacks often report impaired vision. The consequences of a brain injury also affect vision.

I must say about the temporary deterioration of vision. This phenomenon occurs with insufficient blood supply to cerebral vessels. If, for some reason, a person does not eat for a long time, the blood glucose level drops sharply in his blood, resulting in impaired visual acuity.

There are symptoms that, when found out, a person should immediately consult an ophthalmologist. One of these serious symptoms is the appearance, with closed eyes, of light flashes, asterisks or strips. Such symptoms can be with retinal detachment. In addition, the reduction in the field of vision, the appearance of a dark spot in the field of vision should be alarming .

With natural aging, the lens of the eye and its vitreous body becomes turbid, this causes a "veil before the eyes" in a person. It is impossible to prevent or stop this process. Often, the opacity of the lens may be caused by a metabolic disorder, it is also observed in infectious diseases, with cataracts.

If the visual acuity is broken - this is already a serious reason for visiting the oculist. Timely assistance provided is particularly important when suspicion of detachment Retina or eye injury. The oculist will examine the eyes with a slit lamp, a microscope or an ophthalmoscope; If necessary, will measure eye pressure. These examinations are absolutely painless.

If, for further examination, it is necessary, the doctor will drip into the eyes a medicine to dilate the pupils, which will allow you to carefully check the condition of the fundus. But you should know that after such a procedure for several hours you can not read, write and drive a car, so you need to take care of the release from work on the day of the survey.

Verification of visual acuity should be carried out at least once a year. Moreover, if a person wears glasses. Glasses picked up incorrectly, can even more and quickly worsen vision.