Is ametropia the same as astigmatism?

summary

Ametropia is mainly when the eye does not use adjustment, the parallel light will directly pass through the eye under the effect of refraction, can not see very clear objects in the retina, then the performance of the retina at this time will be divided into myopia and astigmatism and hyperopia. The causes of ametropia are more, including genetic factors, but also including some unreasonable eye habits will directly lead to ametropia, so what is the difference between ametropia and astigmatism? Let's find out.

Is ametropia the same as astigmatism?

Astigmatism is in the parallel line after refraction through the eye refractive system, can not simply go to a point, this time many scattered light image, so for the performance of astigmatism. Ametropia can directly cause hyperopia, myopia and astigmatism. It is necessary to differentiate and diagnose ametropia.

Ametropia mainly includes astigmatism, myopia and hyperopia, so astigmatism is also a kind of performance of ametropia, mainly in the normal state of adjustment, ametropia will produce different focus performance due to the different meridian of the eye. The main focus of each meridian direction can not focus normally.

The reason for children's ametropia is that more children are in the stage of growth and development. If they don't pay attention to their eye hygiene, or the posture of reading is not correct, and the light is not good, they will directly cause ametropia, so we must develop good eye habits in life.

matters needing attention

What we said above is how to prevent ametropia? In daily life, we must alleviate the fatigue of eyes, reduce the fatigue of vision, avoid reflection, and reduce the damage caused by reflection to eyes.