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Blurred Vision Causes

Loveleena Rajeev Apr 17, 2019
Blurred vision, in most cases, serves as an indication that our optic nerves are being stressed. Provided here is an information about the various possible causes of blurring of vision.
Blurred vision is a common eye problem that results from visual disturbances. Blurred vision is generally described as the inability to clearly see or outline details, and/or loss of sharpness of vision. One may experience this condition in one or both the eyes.
Visual problems that may be possible causes of this condition include blind spots, halos, floaters, etc. Causes of this problem are not always easy to diagnose, hence it becomes very important to have your eyes evaluated by an ophthalmologist.
Optometrists evaluate the eyes to diagnose eye problems and treat them accordingly. Vision changes and problems like blurred vision may be caused due to many different conditions, some of them have been listed further.


Cataract is the formation of a cloud over the lens of the eyes. This cloud is usually clear and allows the light to pass through easily, enabling us to have a clear vision. However, when the cataract does not let the light to pass through easily, it causes blurring of vision.

Age-Related Muscular Degeneration:

Age-Related Muscular Degeneration (AMD) is a common eye disease associated with aging. AMD is also responsible for destroying the central vision, which is needed to see objects clearly. This eye disease may either inflict a person very slow or very fast.


Glaucoma is found mostly in people affected by diabetes and diabetic retinopathy. In this condition, there is gradual deterioration of the peripheral vision. There are four types of glaucoma; open-angle glaucoma, angle-closure glaucoma, congenital glaucoma, and secondary glaucoma. This eye disorder results in damage of the optic nerve.


One of the temporary cause is floaters. Sometimes we notice floating specks in front of the eyes, but feel that it is not on the surface, but inside the eye. Floaters are basically cellular debris that disappear without treatment. However, consult a doctor if there is an increase in their size or number.


Migraine is severe headache characterized by pain in the head, scalp, or neck. Feeling of nausea and blurring of vision is common when the migraine attack is severe. Some people experience an ophthalmic migraine, where only visual disturbances are observed without a headache. A migraine attack in some severe case may disrupt clear vision.

Optic Neuritis:

The cause for this optic neuritis which causes inflammation of the optic nerve, is unknown. However, this disorder occurs suddenly and its symptoms include sudden, reduced vision in the affected eye. Restoration of vision and vision correction maybe difficult in such cases.

Brain Problems:

Optic nerves directly connect the sensory vision to the brain. Any condition that may upset these nerves may cause foggy vision. Some common intermittent causes include stroke, optic or brain tumors, trauma to the eyes, bleeding into the eye, increased pressure on the eyes, a few specific cardiovascular diseases, etc.

Refractive Eye Conditions:

Occasionally this condition may develop due to myopia (nearsightedness), hyperopia (farsightedness), presbyopia (the cornea and lens of the eye become less stretchable), or astigmatism (distorted shape of the cornea or the lens).
There are many other causes like scratched cornea, dry eyes, etc. that go away with a little rest, some medication, and meticulous eye care. However, visual changes must never be ignored, especially if they start to disrupt your daily routine, as they may be a vital indicator of an underlying disease.