About Contact Lenses

Key points

  • Contact lenses are an effective way to correct vision, but they must be worn and cared for properly to avoid eye infections.
  • Failure to wear, clean, and store them as directed can increase the risk of eye infections, such as microbial keratitis.
Image of contact lens on a finger.

Overview

When cared for properly, contact lenses can provide a comfortable and convenient way to work, play, and live for the 45 million people in the U.S. who wear them. While contact lenses are usually a safe and effective form of vision correction, they are not entirely risk-free—especially if they are not cared for properly.

Contact lenses are medical devices. Failure to wear, clean, and store them as directed can increase the risk of eye infections, such as microbial keratitis. To enjoy the benefits of wearing contact lenses, it is essential to practice healthy habits. Remember: Healthy Habits = Healthy Eyes.

A woman putting on a contact lens.
Contact lenses are a common form of vision correction.

Reducing risk

Wearing and caring for contact lenses properly is critical to keeping the eyes healthy and preventing eye infections; however, the majority of contact lens wearers do not practice proper contact lens hygiene.

Since 2006, in the US there have been multiple outbreaks of Acanthamoeba keratitis and Fungal keratitis—both of which are very serious eye infections that can result in vision loss or blindness. These outbreaks have brought attention to contact lens wearer hygiene and the need for consistent information about how to wear and care for contact lenses to help prevent such infections.

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