Your vision starts to blur if any of the eye’s components, whether it’s the optic nerve, retina, or cornea, fail to work properly. Blurred vision takes time to develop as it is often the result of a long term condition. When your vision lacks sharpness, objects may seem blurry. Sure, this might be a symptom of farsightedness and near–sightedness. Nevertheless, blurring of vision can have various other causes.
Causes of Blurred Vision
A stroke can damage nerves that transfer the information to the eyes. Changing eyesight can be a sign of stroke.
- Eye Infection
Eye infections, including viruses, fungi, or bacteria, can blur vision. Furthermore, the infection can cause swelling, soreness, and watery eyes.
- Wet Macular Degeneration
The macula is located in the center part of the retina behind your eye. This region is responsible for the color and details of the image your eyes make. Macular degeneration can blur the central vision.
When you encounter an injury in your eye, the pool of blood spreads in front of the eyeball, which is called hyphema. This causes severe pain and blurs the vision.
During pregnancy, changes in the hormones change the thickness of the cornea. Furthermore, women may face dry eyes during pregnancy. Both of these conditions cause blurry eyes.
When the cornea has an irregular shape, light rays fail to focus on a single point. Without proper image formation on the retina, you cannot visualize the image.
Myopia or near-sightedness is a condition in which you cannot see the objects far from you. This condition is a result of improper image formation on the retina.
- Migraine with Aura
Migraine attacks usually cause blurriness of the vision. This condition usually affects only one eye. It is possible to experience aura without headache.
Your eye contains numerous pigmented structures, namely the uvea. When this region of your eye starts to hurt or inflates, your eyes can’t create a clear image of the object. The condition is Uveitis.
Symptoms of Blurred Vision
The symptoms of sudden blurry vision may vary depending on the causes. Here are some of the conditions that you may or may not develop with blurry vision:
- Double vision
- A spot in your vision
- Discharge from the eyes when you have an eye infection
- Conjunctivitis will result in itchy eyes.
- Speech difficulty and stroke
- Nausea and headache if the cause is a migraine
Blurry vision can have various other causes, such as high blood sugar, corneal abrasion, eye strain, and many more. If you experience blurry vision, you must consult with your healthcare provider for a diagnosis to find the underlying cause.
You must contact the ER immediately if you experience pain, sudden blurry vision, eye injury, spots in your vision, etc. A health care professional will suggest a treatment plan, depending on the condition and severity. Hence, don’t put off scheduling an appointment with your doctor if you experience any changes in your vision.