Blurry Vision: Can You Go Blind And Why This Happens

Blurry vision happens when there is a loss of sharpness in your eyesight. You are unable to see the finer details in objects and they look fuzzy and out of focus. In many cases, this vision defect is the result of a refractive error. These are nothing to panic about as this can be easily treated with corrective lenses or glasses.

However, blurry vision can also indicate a more serious condition including eye disease, a neurological disorder or psoriasis. It’s therefore vitally important that you see a doctor as soon as possible. You may avoid potential blindness.

senior doctor examining elderly man's eyes suffering from blurry vision

A common condition

We have probably all suffered from cloudy and blurry vision at some time. It is the most common problem with eyesight. You may find yourself squinting, blinking or rubbing your eyes to try and clear your sight. It can occur in the morning, after drinking alcohol or when in bright sunlight.

If it is minor, coming and going, then there is probably nothing to worry about. But there are other more severe causes which you should also be aware of.

Depending on the cause, it can occur in one eye or both. Your whole line of sight of just part of your vision can be affected

Causes of blurry vision

Knowing and understanding the cause of your cloudy vision is crucial. So, make sure that you ask your doctor what the causes are. Some of the most common causes of haziness in vision are refractive issues within the eye. These include myopia (nearsightedness), hyperopia (farsightedness), and astigmatism.

Chronic dry eye and cataracts are other common causes. You may also suffer from MGD (Meibomian Gland Dysfunction) or Blepharitis.

Some people get blurry vision after stroke. See what other causes can make your eyes dry.

Contact lenses

Wearing contact lenses for too long can increase your risk of contracting an eye infection. Debris builds up and can scratch the surface of the eye leading to blurry vision. Always follow the hygienic cleaning instructions and remove your contact lenses when you sleep.


Some medicated eye drops and allergy tablets can have side effects including dry eye and distorted sight. Your eye specialist will be able to help alleviate these effects.

Psoriasis can cause blurry vision

Although more commonly associated with the skin and joints, psoriasis can also affect your eyes. Inflammation and swelling are caused by a condition known as uveitis. You may experience pain, redness and sensitivity to light along with fuzzy vision.

Pink eye

Otherwise known as conjunctivitis, pink eye is caused by the cold and flu virus. Itching, redness, swelling and distortion in vision are just some of the symptoms. Pink eye is not serious, but it is highly contagious. Steps should be taken immediately to stop it spreading.

When is an eye exam needed for blurry vision?

Any changes to your vision need to be taken seriously. You should always arrange to have an eye exam if you notice blurry vision and/or other abnormalities.

You may require nothing more than a prescription. However, seeking medical advice and having regular eye exams can ensure that any serious condition is identified quickly. Your doctor can advise you on how regularly you should have your eyes checked.