Why Are My Contact Lenses Blurry? How To Correct Blurred Vision

While the main purpose of contact lenses is to provide wearers with crystal clear vision, there are a few things that can make lenses appear blurry or cloudy. Here are a few common reasons as to why your vision might be blurred through your contacts, along with ways to correct this. 

Dry Contact Lenses or Eyes 

Blurred vision can often occur as a result of your contacts or your eyes becoming too dry. Many people (who don’t necessarily wear lenses or glasses) suffer from a common dry eye condition, where the eye simply doesn’t produce enough tears to keep them moist – this can also occur if tears evaporate too quickly. While there’s usually nothing to worry about, it can be frustrating and result in a blurred or clouded vision. 


Drops are available to help moisten and wet the contact lenses, avoiding dryness from occurring. It’s best to speak to your optician about which kind of drop would be most suitable for you, as different lenses are made from different materials, and therefore not all drops will be appropriate.

If the problem is with your eyes getting dry as opposed to the lenses, speak to your GP about getting a prescription or try over-the-counter medication to rectify this problem. Remember to replace and renew your contact lenses as per their instructions, as leaving them in longer than intended can also cause irritation to the eyes, preventing tears from forming as they should. 

eye drops

A Build-up Of Deposits On The Lenses 

A fairly common reason for blurred vision is the build-up of protein deposits and debris on the surface of the contacts. This can often occur if you’ve worn your contacts for longer than their recommended length of time, resulting in an accumulation of the deposits creating blurred or hazy vision. You’ll be able to tell if this is the reason for your change in vision by seeing if the blurriness goes away once the contacts lenses have been removed.


Following a safe and careful cleaning routine each time your contact lenses are removed will help prevent debris and proteins from building on the surface. Your optician will be able to provide you with cleaning tips and advice, as well as recommend the best lens solution to use for this. You should only ever wear your lenses for the time they’ve been advised for, otherwise you could cause serious damage to your eyes. 


Conjunctivitis is quite a common condition that involves inflammation or infection of the membrane lining the eyelid and the eyeball. Viral and bacterial conjunctivitis are highly contagious, so it’s important to stay away from others if you have the condition, and not share possessions such as towels or pillows. 

Symptoms can include your eyes feeling as if they’re fused shut when you wake in the morning, a pus-like leaking discharge that can dry to a crusty coating on the eyelashes, a gritty sensation when you blink, itchiness and blurred or cloudy vision. Though there may be other reasons that cause the condition, conjunctivitis can often be a result of handling contact lenses with unclean hands. 


The symptoms of conjunctivitis can be relieved by using a clean cotton wool pad (dipped in boiling water that has cooled down) to gently wipe your eyelashes, in order to clean any crustiness that the discharge has caused. You can then try holding a cold flannel on your eyes for a few minutes to help cool them down – contact lenses should not be worn until your eyes are better and conjunctivitis has completely cleared. If symptoms still persist, see your pharmacist or GP, as you may need antibiotics or treatment to clear the infection.  


Your Prescription Needs Changing 

Our vision often changes as we age, with many people finding that their eyesight worsens as they grow older. This means that your prescription will need to be changed and adjusted to fit these new variations when and if they occur. While it’s more obvious to remember to get our glasses checked and changed over the years, it can be easy to forget that contact lenses require the same amount of maintenance to ensure they’re the correct strength for your vision. You may also find that your blurred vision is a result of your lenses rotating or moving around the eye, in which case a new prescription for better fitting contacts may be the answer. 


You’ll need to book in to see your optician for an eye test, so that they can detect any changes that need to be made to your prescription. Most changes are a natural part of aging, however, some could be an indication of a further eye problem or even an underlying health condition such as diabetes, so it’s important to always have regular check-up appointments with your optician to try and catch any issues before they exacerbate. If possible, try to keep a record of your symptoms to track the times and days that they occur, so that your optician can identify what may be causing the problem. 

Corneal Abrasion 

Corneal abrasions are more common than you may think and occur when a sharp object gets in between the contact lens and your eye. This is often something incredibly small like a piece of debris, a grain of sand or a piece of glass, however, can cause a lot of discomforts as well as blurred and cloudy vision. Though corneal abrasions are normally nothing serious, they can lead to corneal ulcers if left untreated, which can result in severe consequences such as loss of your vision. 


Any pain or discomfort in the eyes should result in you removing your contact lenses immediately and seeing your doctor or optician as soon as possible. These scratches to the eye can often heal on their own very quickly, however, a doctor may need to provide you with further treatment depending on the severity of the abrasion. If you feel your blurred vision isn’t associated with your contact lenses, or is accompanied by other symptoms or pain, then you must ensure you speak to your doctor immediately.