Why I see blurred by one eye – we explain it to you


If lately when you try to focus your eyes on a certain place or object you have noticed that it is difficult for you to see correctly through one of your eyes, it is normal for you to ask yourself the following question: “why do I see blurred by an eye?” When we present with these types of vision difficulties, it is likely that the cause of this problem is related to some type of condition or disease that one of your eyes may be experiencing.

Why I see blurred by one eye - we explain it to you

Next, in the following article of, we explain the possible causes that can cause a blurred vision by one of the eyes. Even so, it is recommended that you go to the ophthalmologist to check your eye health.

Tired eyesight or long arm syndrome

One of the most common causes that can cause us to see blurred by one or both eyes is to be developing what we know as tired eyesight. Also known as presbyopia, it is an eye problem that usually appears from the age of 40 and consists of the difficulty of being able to focus correctly on nearby objects or reading documents with small letters.

In addition to not being able to see clearly, another of the most common symptoms of tired eyesight is the need to stretch out your arms to be able to focus correctly on objects or letters. Therefore, tired eyesight or presbyopia is also often referred to as long arm syndrome.

If you want more information, you may find the following article on How to Treat Eyesight Tired useful.

Blurred vision and headache? Myopia

Another abnormality or alteration that can cause blurred vision is myopia. However, while in the previous case there were difficulties in clearly seeing nearby objects, myopia is distinguished by not being able to focus on those that are at a greater distance. In this way, myopia forces those who suffer from this condition to have to squint to get a clearer view of things.

Other symptoms that may be warning you that you are developing a visual problem such as myopia, in addition to blurred and poorly defined vision of shapes and objects, can be constant headaches and eye fatigue, among other things.

Blurred vision and headache? Also, astigmatism

Astigmatism is an ocular anomaly that affects 60% of the population and that occurs when there is an irregular curvature of the cornea of the eye, so that the light that enters through it is focused on more than one point of the retina. As a result, astigmatism causes the following symptoms in people with this problem:

  • Blurred and distorted view of both nearby objects and shapes that are at a greater distance.
  • Difficulty perceiving small details at any distance.
  • Eyestrain.
  • Redness and stinging in the eyes.
  • Dizziness and headache.

Blurred vision in a painless eye? Falls

Cataracts is an eye condition that appears in people over 60 years of age and occurs when the lens of our eyes becomes opaque. This clouding in the lens of the eye prevents the passage of light through it and, as a consequence, causes partial or total loss of vision. Cataracts can be distinguished by the following symptoms:

  • Blurred vision.
  • Excessive sensitivity to light.
  • Seeing double, that is, when we see two objects instead of one.
  • Difficulty being able to see at night.
  • Perceive colors as dimmed or yellowish rather than bright.

Sudden blurred vision and headache? Glaucoma

The reason why you see blurred by one eye can be due to the development of a degenerative disease such as glaucoma. This eye condition is caused by an excessive increase in tension in one of the eyes which is caused by the lack of drainage of the ocular fluid.

Although it is difficult to detect this condition until it is at a more advanced stage, glaucoma is usually accompanied by the following symptoms:

  • Blurred vision and reduced visual field.
  • Loss of peripheral vision.
  • Nausea and vomiting.
  • Headaches and eye aches.
  • Appearance of multicolored halos in bright lights.


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