nærsynhed

Nærsynhed, also known as myopia, is a common refractive error of the eye where distant objects appear blurred while close objects remain clear. This condition occurs when the eyeball is too long or the cornea is too curved, causing light rays to focus in front of the retina instead of directly on it. The exact causes of nærsynhed are not fully understood but are believed to be a combination of genetic predisposition and environmental factors. Prolonged close work, such as reading or using digital devices, is often associated with an increased risk or progression of myopia, particularly in children and adolescents.

Symptoms of nærsynhed can include squinting to see distant objects, frequent headaches due to eye strain, and difficulty seeing clearly in dimly lit conditions. In severe cases, untreated myopia can lead to more serious eye conditions later in life. Diagnosis is typically made through a comprehensive eye examination by an optometrist or ophthalmologist.

Nærsynhed can be corrected with various methods. Prescription eyeglasses and contact lenses are the most common solutions, designed to bend light so it focuses correctly on the retina. For some individuals, refractive surgery, such as LASIK, may be an option to permanently reshape the cornea. There is also ongoing research into myopia control strategies, particularly for children, aiming to slow down the progression of the condition.