Kontaktlinssien

Kontaktlinssit, commonly known as contact lenses, are thin lenses placed directly on the surface of the eye to correct vision. They are a popular alternative to eyeglasses for a variety of refractive errors, including myopia (nearsightedness), hyperopia (farsightedness), astigmatism, and presbyopia.

The first contact lenses were made of glass, but modern lenses are typically crafted from soft plastics called hydrogels or silicone hydrogels. These materials allow oxygen to pass through to the cornea, which is essential for eye health. Harder lenses, made from rigid gas-permeable (RGP) materials, are also available and offer excellent vision correction, especially for astigmatism, but may require an adaptation period.

Contact lenses come in various types based on their replacement schedule. Daily disposables are worn once and then discarded, offering convenience and reducing the risk of infection. Bi-weekly and monthly lenses are also available and require daily cleaning and disinfection. Extended wear lenses can be worn for longer periods, even overnight, but this is not suitable for everyone and requires a doctor's approval.

Proper hygiene is crucial when wearing contact lenses to prevent eye infections and complications. This includes washing hands thoroughly before handling lenses, using appropriate cleaning solutions, and following the recommended wear and replacement schedules. Regular eye check-ups with an eye care professional are also essential to ensure the lenses fit correctly and that the eyes remain healthy.