Reasons Why You May Have Sudden Blurred Vision

If you’re experiencing sudden blurred vision, it is important to figure out the reason behind it. It does not always mean there is an emergency; however, if you cannot see clearly, you should visit a doctor to see if you require medical treatment.

The following are some of the reasons behind sudden blurred vision:

Detached Retina

This is a possible cause and occurs whenever the retina pulls away from the blood vessels that provide it with the oxygen and nutrients it requires. Symptoms include flashes of light in one or both eyes, gray or black specks floating in your vision or a shadow on the sides or middle of your vision. This issue would have to be treated fast; otherwise, permanent damage or vision loss could occur.


This occurs whenever a person experiences an injury to the head and symptoms can include confusion, mood changes, headaches, amnesia, and dizziness. It can cause blurred vision and the treatment will focus on reducing these symptoms to restore the patient’s well-being and vision.


This can cause a person’s vision to become blurry in one or both eyes and symptoms include numbness in the body, confusion, difficulty speaking, difficulty walking, lack of coordination and severe headaches. If you think someone is experiencing a stroke, you need to call an ambulance right away so that the person can be taken to a hospital for treatment.

Eye Infections

These are known to cause blurred vision and the type of treatment required will depend on the severity of the symptoms. Some eye infections may require immediate medical treatment. Keratitis, conjunctivitis and orbital cellulitis are all examples of eye infections that can lead to blurred vision if left untreated.


Migraine attacks are painful and can sometimes lead to blurry vision and flashing lights. Treatment may involve the prevention of the symptoms and may include the need for medications or behavioural changes. Prescribed medications may also be recommended to help ease the symptoms and restore the patient’s vision.


Focusing on something for a long period of time or the excessive use of screens without a break can lead to eye strain, which could cause sudden blurry vision, itchy eyes or headaches. It is very important to take breaks to rest your eyes as this will help relieve the symptoms.

Regardless of the severity of your situation, it is important to seek help whenever you experience sudden blurred vision, so that the situation does not become permanent. The right treatment will help restore your vision and will prevent further damage to your eyes. It may also help identify any other serious underlying health conditions that may have played a part in causing blurred vision.

Blink Vision Care is a reputable eye clinic in Brampton who can help with any issues you may be experiencing related to your eyes. Whether you need contact lenses or eyeglasses, we can help, so come and visit us today!