What are the symptoms of astigmatism?

summary

Nowadays, almost all people are short-sighted and astigmatism. Astigmatism is a defect of the eyeball. The image formed by distant objects on the retina is a line, not a clear point. This is because the cornea or lens is not round enough. Astigmatism mainly occurs in the cornea, Different parts of the cornea have different focusing ability. The refractive power of the cornea on two mutually perpendicular meridians is different. As a result, the visual object is deformed or tilted. In other words, the light reflected by the external object enters the eye and cannot form a focus on the surface of the retina, but forms a focal line, so that it is not clear to see far and near, Many myopic and hyperopic eyes have different degrees of astigmatism. Astigmatism is not a disease, but it does often cause vision problems. In fact, 100% of people have different degrees of astigmatism. What are the symptoms of astigmatism? Let's talk about it

What are the symptoms of astigmatism?

The first symptom of astigmatism: visual fatigue: astigmatism eyes due to the different refractive power of each meridian line, the parallel light refraction can not form a focus, but two focal lines, so the brain is easy to produce selective interpretation of the image.

The second symptom is astigmatism; Vision loss: astigmatism eyes far away from the retina focus line direction of the target color becomes pale, the edge of the virtual unclear, not easy to identify, vision loss, severe diplopia.

The third symptom of astigmatism is that people who are a little more serious feel blurred no matter what they see far or near. Patients often have the habit of half closing their eyelids and narrowing them into gaps in an attempt to make the objects see more clearly.

matters needing attention

Mainly let your eyes rest more, go to bed early, get up early, go running, watch more green plants, then do eye exercises, wash your eyes with appropriate salt water, no matter reading, watching TV or computer, the time should not exceed one hour, rest for three or five minutes. Reading time line to be adequate, the best light from the left rear; Reading posture should be correct, and keep the distance between 30 cm and 40 cm; Don't read in a rickety car or lie down. When choosing reading materials, the font should be clear, not too small. Reading for less than an hour, every 30 minutes rest for 5 minutes, this can effectively prevent the occurrence of astigmatism.