Astigmatism Complex

Today we will look at the term “astigmatism”. There are several definitions for the term astigmatism. In medicine, astigmatic optics refers to the inaccuracy of the lenses of an optical device, which consists in the fact that the lens sphere does not provide complete correction of the astigmatic component. An astigmatic component is such an additional spherical lens after a diverging or converging cylinder that is added to another optical system to create a full focal action.

Astigmatism is a serious vision problem that requires medical attention and treatment. However, the definition of astigmatism is complex and heterogeneous because, in addition to the associated visual problems, astigmatism can also refer to certain physical properties of the eye or lens, such as the curvature and density of the axis of each eye. Unfortunately, poor information and incorrect definitions of astigmatism are sometimes used in health care advertising or patient documentation. As a result, people think that the so-called astigmatism is a normal optical property of the eye, but this opinion is completely wrong. **The eyes are asymmetrical and in fact one cannot speak of a normal symmetrical cornea or lens, as this distorts the perception of complete reality.** Each eye has its own unique aberrations and refractive properties. If the aberration of one eye is balanced by the lens of the second eye and no correction is made, then image discrepancies may occur in the retinas of both eyes, even with 1D astigmatism. In this case, vision can deteriorate to such an extent that a person cannot navigate in space. With such changes in the eyes, a person can suddenly find himself driving a car. A number of symptoms appear: photophobia, eye pain, redness. This usually happens because the headlights are poorly adjusted, especially on long trips. Due to the appearance of “flies” after a long ride with glasses, many people think that they urgently need to be replaced. However, if