Why Are My Contact Lenses Blurry?


Blurry vision from contact lenses is a recurring issue that many lens wearers encounter at some point. So, what causes it, and how can you avoid it?

Read on to find out.

What Causes Blurry Vision From Contact Lenses?

Here are five of the most common reasons you might experience blurry, hazy, or cloudy vision while wearing contact lenses:

1. Outdated prescription

Contact lens prescriptions are good for only one to two years because our vision changes as we age, especially when we reach 40.

If you don’t have allergies or sensitive eyes but experience blurry vision while wearing contacts, it could be that your prescription is no longer suitable for your needs.

The only real solution is to visit an eye care professional (ECP), so they can give you an eye exam, fit you with new lenses, and update your prescription.

2. New prescription

If you had just updated your prescription and experience blurry vision, it could be that your eyes need some time to adjust to your new lenses.

close-up of a contact lens prescription

It may take as long as two weeks for your eyes to get used to contact lenses, especially if you’re a new contact lens wearer.

3. Incorrect fit

Ill-fitting lenses can also cause blurry vision.

Contacts vary in diameter and thickness depending on the brand, so your eye doctor may need to fit you with different lens brands to see which works best for your eyes.

Aside from blurry vision, ill-fitting lenses can also cause eye strain and other issues, so getting the right fit is key.

4. Overwearing contact lenses

Deposits like proteins and dirt can accumulate on the surface of your contact lenses over time, even with regular cleaning. They can cause discomfort, eye irritation, and blurry vision.


It’s important to replace your contact lenses as scheduled. If you wear bi-weekly contacts, for example, toss them out after 14 days. If your lenses are FDA-approved for overnight wear and you wore them for several days straight, you may need to toss them out earlier than that. This applies to both bi-weekly and monthly lenses.

5. Allergies

If your eyes swell, itch, or get watery due to an allergic reaction, your contact lenses could end up not sitting properly on your eyes. This could lead to blurry vision.

Allergens like dust and pollen can stick to the surface of your lenses and trigger allergic reactions. Naturally, lenses worn daily for a month will collect allergens the whole month. This isn’t a problem with daily disposable lenses because you simply throw them away at the end of the day, allowing allergens less time to accumulate.

But if your eyes are really itchy from an allergic reaction, it may be best to refrain entirely from wearing contact lenses. Use a backup pair of glasses until your symptoms improve.

Is It Normal for Contacts to Be Blurry at First?

Yes, some blurriness is common for new contact lens wearers.

Upon insertion, you might notice some blurry vision as the lens settles in your eye. This should only last for a second or two.

If you only recently switched to contact lenses, it may take as long as two weeks for your eyes to fully adjust to your new lenses.

When Should I See My Eye Doctor?

If blurry vision from contacts persists, see your eye doctor immediately. They can rule out serious issues like eye infections and other problems.

Wrapping Up

Blurry vision from contact lenses is preventable as long as you handle and care for your contacts properly and get your eyes checked regularly.

This article is not intended to be a substitute for professional medical advice. Consult your ECP if your vision remains blurry with contacts or if you experience sudden changes in vision clarity.