The assessment of astigmatism involves determining the degree and orientation of any refractive error caused by an irregularly shaped cornea or lens. This examination is essential for prescribing corrective lenses that compensate for the distorted vision. Several methods are employed to precisely measure the refractive power of the eye across different meridians.
Accurate detection and correction of this refractive condition are crucial for visual clarity and comfort. Undiagnosed or uncorrected astigmatism can lead to blurred vision, eye strain, headaches, and difficulty with tasks requiring sharp focus, such as reading or driving. Historically, subjective refraction techniques were the primary methods for identifying and quantifying astigmatism; however, advancements in technology have provided more objective and precise tools.
