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The Magic of Contact Lenses: How They Work

Contact lenses are a popular alternative to prescription glasses for vision correction. These thin, curved plastic discs are placed directly on the eyes lenses and can correct a range of vision issues such as nearsightedness, farsightedness, and astigmatism.

So, how do contact lenses work? Essentially, they act as a replacement for the eye’s natural lens. The contact lens refracts the light before it enters the eye, correcting the vision problem. The refractive power of the contact lens is determined by the curvature of its surface and the refractive index of the material it’s made of.

Contact lenses have come a long way since they were first invented in the 19th century. Today, there are various types of contact lenses available, including soft lenses and rigid gas permeable lenses. Soft lenses are more pliable and comfortable, whereas rigid lenses are more durable and provide sharper vision.

One common concern about using contacts is the potential for eye infections. To reduce this risk, it’s essential to maintain proper hygiene by washing hands before handling the lenses, avoiding sleeping in them, and regularly cleaning and disinfecting the lenses.

Contact lenses can be a convenient and comfortable solution for those with vision issues. As with any medical device, it’s crucial to consult with an eye care professional to determine if contacts are right for you and to ensure they are being used correctly.

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