What is Myopia (Nearsightedness)?
Nearsightedness (Myopia) is a Visual Impairment in which a person does not clearly see objects located at a distant distance.
Myopia can be divided into three Types of Myopia:
Refractive myopia: The refractive power of the cornea or lens becomes larger, so that the light is focused in front of the retina.
Axial myopia: The front and back diameter of the eyeball becomes longer, and the light is focused in front of the retina.
Pseudo-myopia: short-term it’s caused by excessive contraction of the ciliary muscles, which causes the lens to thicken, and the refractive power increases.
The main Symptom of Myopia is blurred vision. This can be noticed from the outside, for example, as signs of visual impairment in a child are often noticed. It:
- squinting, squinting, looking at objects or trying to read;
- brings the book as close to the eyes as possible;
- when working at a computer or watching TV, on the contrary, he tries to bring his eyes closer to the screen.
Unable to see far away things clearly. It is quite easy to suspect that a child is developing myopia. A child who has similar vision problems begins to squint, frown when looking at a certain object, brings a book very close to his eyes, brings his eyes closer to the monitor.
If you have such manifestations, you should consult a doctor for advice. If a child is diagnosed with myopia, it is very important to regularly check the parameters of the eyes every year, in certain cases this should be done even more often. It is important to go to specialized clinics or rooms for diagnostics using special equipment.
What Causes Myopia?
Myopia is mainly caused by long-term close reading or work and improper light source, which makes the eye axis too long or the corneal curvature is too curved, so the light enters the eye, cannot form a focus on the retina, and falls in front of the retina.
It can accept reduced laser eye surgery, corneal curvature change, so that the light re-focus on the retina, but to note that this procedure is effective in patients with it 600, who may not be myopic deep full subtracter myopia.
- When looking at close objects such as books, the distance should be at least 30 cm, that is, when you sit upright, keep your eyes away from the desk.
- If you want to read a book for a long time, you should take a 5-minute rest every 30 minutes, or stare into the distance to restore your eyesight. Choose a place with sufficient light when reading, but pay attention to the fact that the light is too bright or too dark to cause eye fatigue.
- Don’t get into the habit of lying in bed or reading while riding in the car.