Astigmatism Eyes

Astigmatism is a disease of the eyeballs in which there is a lack of sharpness and clarity of vision. It occurs due to the fact that the cornea of ​​the eye is not round, but elliptical or ovoid and not parallel to the retina. Therefore, when focusing light and imaging objects on the retina, scattering of the rays occurs - objects are not clearly visible. However, in certain areas of the eye the rays converge at one point and the image turns out sharp. Thus, a person sees the world very blurry, but clear around the edges.

Eye astigmatism can occur due to many factors - inflammation of the cornea, infections, injuries that affect the shape and curvature of the cornea. But most often, astigmatism affects people with a short anterior-posterior axis of the eye, weak scleral narrowing, or incomplete development of the lens. This may also be due to the anatomical structure of the eye and the cartilage that connects the ribs and the iris. Congenital astigmatism occurs in only 2-5% of people. It often affects both eyes, and then vision is more affected.

Patients with astigmatic eyes may have different eye lengths. Asthenopia can be considered a consequence of high degree axial myopia and other factors. Treatment of eye astigmatism takes a considerable amount of time and includes adjusting the glasses to the patient’s condition, visual muscle exercises, special procedures to improve blood circulation and other measures. The optimal correction option is selected individually for each person.

Astigmatism (from the Greek astigmatós - irregular shape). The term was proposed by anatomist, physiologist and physician Erasmus Bartholin in the middle of the 16th century. He was the first to describe different types of astigmatism."

The cause of astigmatic vision is the curvature of the cornea or lens and is called corneal or lenticular astigmatism. To treat corneal astigmatism, the doctor prescribes glasses with cylindrical lenses, while only one pupil works, which leads to severe eye fatigue. In the case where the lens is astigmatic, surgical intervention is prescribed. . With age, we become astigates; from about 45 years of age, vision becomes different than in young years, focal visual acuity decreases, and contrast sensitivity is impaired. Some people retain good vision with age, while others deteriorate to the point of almost blindness. . The term “astigmatism” was introduced by the Greek naturalist and philosopher Erasistratus, who lived in the 3rd century BC.

**Astigmatism** is a vision defect in which the optical system of the eye cannot form a clear image on the retina due to different curvature of the cornea. This leads to the patient seeing objects distorted or blurred and experiencing discomfort and eye fatigue.

**Forms of astigmatic syndrome** can be congenital or acquired. Congenital forms occur due to problems with the development of the lens in the baby's eye during pregnancy or childbirth. The active form develops as a result of injuries, surgical interventions on the eyes or under the influence of infectious diseases. **The cause of astigmatic refraction** of varying degrees is a deficiency or excess of vitamin A, pathological changes in the cornea, mechanical damage, stressful situations, severe coughing, eye diseases and general metabolic disorders in the body. Asti