Whether gradually or suddenly, blurry vision in one eye can be disturbing. And with causes ranging from mild to severe, it’s a good idea to have an understanding of what might be behind things that seem mysterious from one of your eyes.

Causes

Although they may look similar, there is a difference between “blurry” and “blurry” vision.

• Blurry vision means that what you see is out of focus.
• Cloudy visibility feels like you’re looking at everything through a fog or fog.
• Here, we will focus on dull vision: specifically, when it occurs in only one eye.
• In the same vein, there are many situations that can lead to blurry vision in one or both eyes, and here we are going to show situations that, in most cases, affect only one eye.

Amblyopia

Also known as the “lazy eye”, amblyopia causes blurry vision only in the affected eye.

Other symptoms include:

• Lacks depth perception
• Squint eyes
• Close one eye
• Tilt head to one side
• Some babies are born with amblyopia, while in others it develops a little later. It is the most common cause of vision loss in children.

Amblyopia treatment involves retraining the brain and forcing it to use the weaker eye. This is usually done by wearing an eye patch or placing blurred eye drops in the dominant eye

pupil Adie pupil is a neurological disorder in which one pupil does not react normally to light. The affected pupil is usually larger than normal and does not get smaller in the presence of bright light.

When the abnormal pupil size and blurry vision in one eye are accompanied by the following symptoms, it is known as Adie syndrome:

• General sensitivity to light
• Difficulty reading
• Excessive sweating

The absence of a knee reaction while there is no cure for this condition, it can be treated using: 

• Glasses: to improve reading or close vision.
• Sunglasses: to reduce light sensitivity.
• Eye drops: either to minimize the pupil and reduce light sensitivity, as well as to reduce
• Glow while driving at night.
• Optic neuritis

Optic neuritis is an inflammation of the optic nerve and usually affects only one eye. The exact reason for this is unknown. Optic neuritis also affects nearly half of people with multiple sclerosis (MS), a progressive neurological disorder, and is often the first symptom of this condition.

In addition to blurry vision in one eye, other symptoms of optic neuritis may include:

• Trouble distinguishing colors, or noticing that colors are not as bright as usual
• Foggy that worsens after your body temperature rises, such as taking a hot shower or exercising
• Inability to see with one eye
• Abnormal reaction of pupils when exposed to bright light
• Pain in the eye, especially when moving it
• Symptoms can vary greatly, depending on the extent of inflammation of the optic nerve. If blurred vision becomes a loss of vision, it usually peaks within a few days and begins to improve within four to 12 weeks.

In some cases, the doctor may prescribe steroids (usually injected into a vein) to treat optic neuritis, although the condition will often disappear on its own.

Stroke

Also known as retinal artery blockage (RAO), it is a blockage in one or more retinal arteries, caused by a clot or accumulation of cholesterol in the artery. There are two types of RAOs:

Retinal branch blockage (BRAO): This blocks the small arteries in the retina.
Central artery occlusion of the retina (CRAO): It is a blockage of the central artery of the retina, considered a form of stroke of the eye, and requires emergency medical care.

In addition to sudden, painless, blurry vision in one eye, a stroke can also lead to sudden vision loss. This can happen in all or part of one eye.

Other symptoms can include:

• Loss of peripheral vision
• Distorted vision
• Blind spots
  There is no effective treatment for this condition. The most important thing is to make sure that you do not have a cerebral artery infarction or stroke. If detected early enough, some methods that may be useful include:
• Inhalation of a mixture of carbon dioxide and oxygen causes the arteries of the retina to dilate
• Removing some fluid from the eye to allow the clot to move away from the retina
  A drug that breaks down the clot
• Liebre hereditary optic neuropathy
• Men get this eye disease more often than women. Hereditary optic liberopathy usually begins when young people experience blurred or loss of central vision in one eye, followed months or years later by vision loss in the other eye.
• The condition is painless and is usually not accompanied by other symptoms.

  –  At this stage, there are no effective treatments for hereditary optic liberopathy, but antioxidant supplements are sometimes used, and scientists are working on gene therapy therapies.

When to see a doctor ?

Really, anytime you feel blurry vision in one eye (or both eyes), it’s time to see an ophthalmologist. Since it is possible for one eye to become myopic or farsighted while the other retains its full vision, sometimes, blurry vision in one eye can be diagnosed by examining and correcting the eye with glasses, contact lenses, or refractive surgery.

When is blurred vision in one eye considered an emergency?

If the onset of blurred vision in one eye is sudden, it is good to seek emergency medical treatment. The same is true if you completely lose your vision in the eye. Also, if they are accompanied by other symptoms, they may be a sign of an underlying condition. Other worrying symptoms include: 

• Pain in the eye
• Halos around the lights
• Double Vision
• Numbness or weakness on only one side of your body
• Extremely painful headache
• Dizziness
• Confusion
• You lose your ability to speak
• Feeling of shadow pulling over your eyes or pulling a curtain from the side, above or below

A word from Ibsar Specialized Center

As a rule, don’t mess around when it comes to your eyesight. This includes blurry vision in one eye. If blurry vision gradually becomes noticeable, it is likely a natural change in vision that requires some kind of correction or treatment. But when blurred vision appears in one eye out of nowhere — or is accompanied by other symptoms — seek immediate medical attention. Not only is it a safety hazard, since your vision is limited, it can also be a sign of a more serious condition.