Contact Lens Risks (2024)

Wearing contact lenses puts you at risk of several serious conditions including eye infections and corneal ulcers. These conditions can develop very quickly and can be very serious. In rare cases, these conditions can cause blindness.

You can not determine the seriousness of a problem that develops when you are wearing contact lenses. You have to get help from an eye care professional to determine your problem.

If you experience any symptoms of eye irritation or infection,

  • remove your lenses immediately and do not put them back in your eyes.
  • contact your eye care professional right way.
  • don't throw away your lenses. Store them in your case and take them to your eye care professional. He or she may want to use them to determine the cause of your symptoms.
  • report serious eye problems associated with your lenses to the FDA’s MedWatch reporting program.

Symptoms of Eye Irritation or Infection

  • discomfort
  • excess tearing or other discharge
  • unusual sensitivity to light
  • itching, burning, or gritty feelings
  • unusual redness
  • blurred vision
  • swelling
  • pain

Serious Hazards of Contact Lenses

Symptoms of eye irritation can indicate a more serious condition. Some of the possible serious hazards of wearing contact lenses are corneal ulcers, eye infections, and even blindness.

Corneal ulcers are open sores in the outer layer of the cornea. They are usually caused by infections. To reduce your chances of infection, you should:

  • Rub and rinse your contact lenses as directed by your eye care professional.
  • Clean and disinfect your lenses properly according to the labeling instructions.
  • Do not “top-off” the solutions in your case. Always discard all of the left over contact lens solution after each use. Never reuse any lens solution.
  • Do not expose your contact lenses to any water: tap, bottled, distilled, lake or ocean water. Never use non-sterile water (distilled water, tap water or any homemade saline solution). Tap and distilled water have been associated with Acanthamoeba keratitis, a corneal infection that is resistant to treatment and cure.
  • Remove your contact lenses before swimming. There is a risk of eye infection from bacteria in swimming pool water, hot tubs, lakes and the ocean
  • Replace your contact lens storage case every 3 months or as directed by your eye care professional.

Other Risks of Contact Lenses

Other risks of contact lenses include

  • pink eye (conjunctivitis)
  • corneal abrasions
  • eye irritation

For more information about the risks associated with contact lenses, go to:

Contact Lens Risks (2024)

FAQs

What is the most common complication of contact lens wear? ›

Microbial keratitis

This is one of the most serious potential complications from contact lens wearing. Contact lens wear is a primary risk factor for developing microbial keratitis and the risk varies based on the type of lens, the frequency of use, and contact lens hygiene.

What types of problems may occur with contacts? ›

Some common symptoms of contact lens complications are:
  • Burning, stinging or itching in your eye.
  • A gritty feeling.
  • Eye redness.
  • Blurry vision.
  • Eye discharge or watery eyes.
  • Sensitivity to light.

Are contact lenses safer than glasses? ›

Because the world has used eyeglasses for centuries and contact lenses for less than 100 years, physical frames have the reputation of being safer than contacts. That is the general truth, as contact lenses run a higher risk of eye infection due to the lens being on your eye for long stretches of time.

What are the risk factors for contact lens complications? ›

Poor patient CL handling and compliance to hygiene, replacement and care regimens, significantly increases the risk of serious eye infections and other CL complications.

What is the health risk of contact lenses? ›

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.

What are the disadvantages of contact lenses? ›

Lenses are prone to shifting, dryness, and other complications. Eyes are more susceptible to infection with contact lens wear. There is a higher risk of bacterial infections with contact lens users. Infections can be caused by prolonged wear, build-up, bacteria, neglectful care and sleeping with contacts on.

Are contact lenses 100% safe? ›

The longer you wear contact lenses continuously, the greater the risk for an eye infection. This can potentially even lead to blindness without proper treatment. Everyone's eyes are different. Some people are unable to wear contacts overnight, even if they are designed for weekly or monthly continuous wear.

Who cannot wear contact lenses? ›

However, contact lenses may not be a good option for people who: Have had repeated eye infections. Suffer from severe allergic reactions. Have problems with eye lubrication.

How many years can you wear contact lenses? ›

A new lens will last about three years before it expires. You should never wear a lens that has expired. Provided that you care for them properly, contacts you've opened should last a day, two weeks, or a month, depending on the manufacturer's suggested wear time.

Does your vision get worse with contacts? ›

The answer to this question is a pretty simple no. Contact lenses are a perfectly healthy option for those suffering from all kinds of visual impairments, no matter how old or young they might be.

Are contact lenses safe long term? ›

Some contacts are made to be worn for an extended period of time. But it's important to understand that the risk of eye infection increases the longer you keep a single pair of contact lenses in your eyes.

Is it bad to sleep with contact lenses? ›

Is It Safe to Nap While Wearing Contacts? It is not safe to sleep while wearing contacts, even if you are just taking a nap. The occasional or accidental nap in your contacts can increase your risk of an infection. If you think there is a chance you could fall asleep, it is safest to remove your contact lenses first.

What are the symptoms of contact lens overwear? ›

In overwear, the patient will experience inflammation of the cornea (keratitis), redness and swelling of the conjunctiva (the transparent skin covering the whites of the eyes and lines the insides of the eyelids), varying degrees of lens intolerance, eyelid swelling, light sensitivity and corneal edema (swelling).

What are the harmful effects of wearing contact lenses for long hours? ›

This can allow for bacteria to grow inside on your cornea, which can lead to an eye infection. Even though you may not feel any personal discomfort when you wear your contacts overnight, keeping them in too long can create irreversible damage to your eyes.

What eye condition is caused by contact lenses? ›

The most common eye infection related to contact lens usage is keratitis, a corneal infection that can range from mild to severe and has multiple causes. Serious eye infections can cause corneal scarring, which can ultimately require a corneal transplant to restore vision.

Why did my vision get worse with contacts? ›

They can be convenient, easy to use, and some people prefer the look of going frameless. However, despite their benefits, contacts can sometimes cause issues like blurry vision. You could have blurry vision from contact lenses due to a wrong prescription or fit, dry eyes, damaged contacts, or possibly an infection.

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