astigmatizmus

Astigmatism is a common refractive error of the eye that occurs when the cornea or lens has an irregular curvature, causing light rays to focus improperly on the retina. This results in blurred or distorted vision, which can vary depending on the angle at which the eye is viewed. Astigmatism can be caused by various factors, including genetics, eye injuries, or certain medical conditions such as keratoconus. It is often categorized into two types: regular astigmatism and irregular astigmatism. Regular astigmatism is more common and occurs when the cornea or lens is shaped like an egg, causing light to focus at different points depending on the angle of view. Irregular astigmatism, on the other hand, is less common and occurs when the cornea or lens has an irregular shape, leading to more complex and varied distortions in vision. Astigmatism can be corrected with various methods, including glasses, contact lenses, or refractive surgery. Regular eye examinations are essential for early detection and appropriate management of astigmatism, as it can significantly impact visual acuity and overall eye health.