Astigmatism is a refractive error of the eye also known as a cylindrical error. This condition occurs due to an improperly curved cornea that does not refract light beams equally in all meridians (corneal astigmatism), and sometimes because of irregularly curved eye lens (lens astigmatism). Astigmatism occurs most commonly in combination with farsightedness or shortsightedness. People who suffer from astigmatism usually have difficulties in low light (as soon as it gets dark), and also can often not wear soft contact lenses. A person with astigmatism sees unclear and blurred objects, and when reading small print, the letters seem to be deformed. In milder astigmatism, people sometimes do not notice the existence of the disorder and the symptoms, such as blurred vision, may be slightly corrected by the person manually compensating for the error. At a high level of astigmatism, there is a significant problem with vision and the symptoms are impossible to overlook. Headaches and increased fatigue often occur while reading for long periods, particularly in poor light. There are two types of astigmatism: regular and irregular.
This occurs in more than 80% of people who suffer from astigmatism. Here two principal meridians of the eye are at right angles to each other. If these meridians lie at right angles, but are set obliquely, then it progresses to become what is known as oblique astigmatism. Regular astigmatism is divided into:
Irregular astigmatism occurs when the two principal meridians are not placed at a right angle, but instead are opposite to one another. Irregular astigmatism is the largest reason for the cause of disease, injury, or inflammation of the cornea. Astigmatism “by the rule” is one where the vertical meridian refracts rays of light stronger than the horizontal. If the horizontal meridian strongly refracts rays of light stronger then the vertical meridian, then it is astigmatism “against the rule.”
There are two easy ways to test yourself for astigmatism: clock dial or sunburst chart.
Look at this picture from a few different distances: People without astigmatism will see all the lines correctly: the same thickness with exactly the same spacing between them. If you suffer from astigmatism, you will see something like two triangles having a peak in the middle of the drawing. As you rotate your head from side to side, so the triangles rotate together with you because astigmatism shows itself within a certain angle. For you to be sure, here is another picture you can use to test for astigmatism: Healthy eyes will see all the lines at the same thickness, while people suffering from astigmatism will see some lines thicker and darker than others. Try to rotate your head for this graphic! TIP: People who suffer from astigmatism can often see an indistinct object more clearly when they rotate their head, or face their head downwards, looking up at the same time. The bad news is that glasses make astigmatism worse in the same way that wearing glasses worsens short sightedness or far-sightedness. But the good news is that astigmatism can be corrected, generally much faster than other eye problems. In “How to Improve Eyesight,“ I have described how some exercise can be carried out in order to fix astigmatism. But by repairing near-sightedness or far-sightedness – the astigmatism also gets reduced! Do something for your health and immediately order the program today! Your eyes, as well as your entire body, will be grateful for those 20-30 minutes a day you put aside for your health and vision exercises. Order the program “How to Improve Eyesight” here: www.howtoimproveeyesight.com
Here is also astigmatism infographic that you may want to share with your friends to help them cure astigmatism too!
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