Corneal astigmatism and crystalline astigmatism

Astigmatism is a very common problem nowadays. After astigmatism occurs, the most obvious feeling is that double images will appear when looking at distant objects. The main cause of astigmatism is due to personal eye problems. Generally speaking, astigmatism is divided into two categories: corneal astigmatism and lens astigmatism. What are the differences between the two? Today we will learn about these two different types of astigmatism.

Nowadays, many people in our lives have eye problems, especially myopia and astigmatism, which are becoming younger and younger, so we need to pay attention to this problem. It is recommended to wear glasses for astigmatism, otherwise it may become more and more serious.

Astigmatism is a refractive error of the eye that is related to the inconsistency in the curvature of the cornea and lens surfaces. Human eyes are not perfect. Some people's corneas are curved in some angle areas and flatter in other angle areas.

The reason for astigmatism is that the curvature of the cornea or lens surface in different directions is inconsistent, which makes the refractive power of meridians in different directions inconsistent, so that the external light passing through these meridians cannot be focused on the same focus. Astigmatism lenses, light cannot be accurately focused on the retina to form a clear image, this situation is called astigmatism.

In general, in the case of true myopia in adults, there is no need for mydriasis examination during eye examination. Your current situation is that your eyes are prone to eye fatigue because you don’t have an astigmatism prescription. It would be best to get an astigmatism prescription to resolve the current discomfort. Astigmatism lenses. If you have astigmatism, you cannot see clearly even if you only wear myopia glasses. Then you may develop habits such as squinting and squinting in order to see objects clearly, which will aggravate the astigmatism.

Astigmatism is generally irreversible, so it is recommended to wear glasses to control the degree and prevent it from getting worse. Astigmatism lenses. The degree of your current astigmatism is not large, so on the issue of whether to wear astigmatism lenses, different doctors have different starting points and different ages, and the fitting is different. The principle of astigmatism fitting is that as long as the eyes