lähinägemine

Lähinägemine, also known as myopia, is a common refractive error of the eye where distant objects appear blurred. This occurs because the eye's lens and cornea focus the image in front of the retina, rather than directly on it. Lähinägemine can develop gradually or rapidly and is often diagnosed in childhood or adolescence.

The exact causes of lähinägemine are not fully understood, but genetics and environmental factors are believed to play a significant role. Prolonged close-up work, such as reading or using digital devices, is also considered a contributing factor by some researchers. Symptoms include difficulty seeing distant objects clearly, eye strain, headaches, and squinting.

Lähinägemine can be corrected with prescription eyeglasses or contact lenses, which help to redirect light so that it focuses properly on the retina. In some cases, refractive surgery, such as LASIK, may be an option for correcting myopia. Regular eye exams are important to monitor the progression of lähinägemine and ensure appropriate correction. While it cannot typically be cured, its effects can be managed effectively.