Our amazing human body: ... Our eyes.

Everything in the world, colors, people, places, etc can be seen just with one thing of our body, the eyes. I think they are an amazing organ because they give us the power of vision, it works like a camera. Without it we couldn't live like we do it everyday and we had to change our lifestyle.

Eyes are organs from the visual system, They detect the light and convert it into electro-chemical impulses in neurons. In the human eye we have different parts of it that controls the system, First it has Lens, if focuses the objects by their distance. Then it has the Pupil it controls the amount of light and its size is controlled by the Iris.

The Human eye is about 2,5 cm of diameter, but it depends on every person. 

Every part of our body can sometimes not work as it should, and that depends on many factor. In the case of the eye we have different problems that can appear during our life. The most common are:

1.- Myopia: When the eye can't easily see objects from a long distance.

2.- Farsightedness: When the eye can't easily see objets from a short distance.

3.- Astigmatism: When the object is seen confused and distorted. 

They can all be fix with special glasses.

According to the Eye National Institute, to keep our eyes healthy we have to eat a lot of fruits and vegetables, also  knowing your family record about any eye illness so it can help to prevent, another thing is that we should check them once a year with a doctor and protect them with sunglasses. 

In conclusion the eyes are a very important and sensible organ which we have to protect a lot.