What is the most common cause of blurred vision in one eye?

Blurred vision is the most common eye complaint that requires people to visit an eye clinic. There are several possible reasons that can cause blurred vision. In addition, it can affect one or both eyes. Read this blog to learn about common causes of blurred vision and what to do if you are suffering from blurred vision.

Common causes of blurred vision

In general, blurred vision can be caused by:


Patients with myopia, also known as myopia, can clearly see nearby objects, but it is difficult to see distant objects. It can affect one or both eyes. This is a common eye problem that people develop due to refractive error. It can also cause blurred vision, headaches, and squinting.


Patients with hyperopia, also known as hyperopia, have difficulty seeing items placed nearby, while being able to clearly see objects in the distance. For patients with hyperopia, activities such as reading, seams, and knitting are difficult. It can also cause eye strain and malaise.


People with astigmatism have blurred vision at all distances, both far and near. This is caused by the irregular shape of the cornea and causes refractive error. No matter how far the object is, the rays cannot focus on the retina, so the field of view is unclear.


People over the age of 40 are more likely to have presbyopia. This is an eye problem caused by age. With age, as the lens hardens, the eyes fail to function properly. Therefore, the rays cannot be properly focused and the eye’s ability to focus on the observed object is reduced.

Dry Eye Syndrome-

As the name implies, this is a problem that causes the eyes to not shed enough tears and causes dry eyes. Because it is dry, your eyes are blurred and your eyesight is blurred or fluctuated.

Wear contact lenses for a long time-

Excessive wear of contact lenses is a common cause of blurred vision. Wearing contact lenses longer than the prescribed period can cause protein and other debris to accumulate and cause obstruction. This also increases your chances of getting an eye infection.

Migraine in the eye-

People who suffer from eye migraines have difficulty seeing correctly when they have an episode. The eyes are also sensitive to light, with the formation of zigzag patterns or halos.


Pregnant women often complain of blurred vision with diplopia. Hormonal changes during pregnancy change the shape and thickness of the cornea, causing vision loss. Blurred vision is also a symptom of gestational diabetes and high blood pressure. Therefore, talk to your doctor about appropriate measures.

Read again: Common causes of cataracts

Unusual cause of blurred vision

Blurred vision is a common sign that may indicate a much more serious illness than the ones listed above. Here are some other eye problems that can cause blurred vision-


A Cataract Cloudiness of the natural crystalline lens of the eye that limits the rays that reach the retina. In addition to blurred or cloudy vision, individuals also experience additional symptoms such as glare and “hello” around the light source at night. Not recommended by PristynCare experts Delay cataract treatment.. At severe stages, lens opacity can lead to complete blindness. Fortunately, there are several techniques available to get rid of cataracts.


People with glaucoma tend to suffer from “tunnel vision” as well as blurred vision. This is a complex eye condition in which multiple eye disorders damage the optic nerve and cause loss of vision. Unfortunately, there are no specific symptoms other than blurred vision, making it difficult to identify the patient. Therefore, people over the age of 30 should have regular eye examinations.

Age-related macular degeneration-

Also called age-related macular degeneration (AMD), it occurs with the age of the individual. The macula is the center of the retina. The person’s eyesight gradually deteriorates, not sudden loss. The straight lines are wavy and bumpy, which not only makes them invisible, but also makes it difficult to understand the object correctly.

Cardiovascular disease-

If an individual develops diplopia with blurred vision, it indicates that he / she is suffering from a potentially fatal medical condition. Some of these conditions include stroke, cerebral hemorrhage, or multiple sclerosis. In these situations, emergency medical treatment is recommended.

Diabetic retinopathy-

People who suffer from diabetes are prone to some eye conditions. Diabetes results in the development of blood vessels inside the eye that can affect the retina. Often, these blood vessels can rupture, causing bleeding inside the eye and loss of vision. It’s a serious condition, but there are several treatment options, including laser and intravitreal injections that can cure the condition.

Temporal arteritis-

In this condition, the temple arteries become inflamed. In some cases, vision can be completely lost. In addition, a person may need to suffer from a chronic headache.

Optic neuritis-

Inflammation of the optic nerve (the nerve that connects the eye to the brain) is known as optic neuritis. The main causes of inflammation are early multiple sclerosis or autoimmune diseases such as lupus and infections.

Additional symptoms to watch out for with blurred vision

There may be some additional symptoms that an individual may develop, based on the underlying condition that alters vision. These symptoms help doctors identify the actual reason for blurred vision in one or both eyes. In addition to blurred vision, you should look for the following symptoms:

  • Extreme sensitivity to light, also known as photophobia
  • Headache that doesn’t fall
  • Red eye
  • Feeling of nausea
  • Excessive pain in the eyes
  • Excessive strain on the eyes
  • Malaise
  • Spots in front of you as if a mosquito was flying in front of your face
  • Dry eyes
  • Eye sore
  • Keep watering your eyes
  • Continuous secretions from the eyes
  • Pupil bleaching
  • Eye trauma

Read again: What are the signs and symptoms of cataracts?

Diagnosis of the cause of blurred vision

The doctor will be diagnosed when he sees the symptoms the patient is experiencing with blurred vision. Diagnosis of blurred vision requires a few visual examinations as well as an eye examination. In addition, doctors can ask the following questions related to the problem-

  • How long has blurred vision bothered you?
  • Does blurring occur from time to time or is it permanent?
  • What kind of medicine are you currently taking?
  • Are you suffering from any medical condition?
  • Have you had any eye injuries in the past?


There are several causes that can lead to blurred vision. Blurred vision due to eye problems such as myopia, hyperopia, and astigmatism can be easily treated with state-of-the-art LASIK surgery. On the other hand, patients with cataracts can consider cataract surgery. Both surgeries are completed within an hour, and after a few hours, clearer vision is Pristine careYou can choose both LASIK surgery and cataract surgery. Book an appointment with an experienced ophthalmologist today.

read more:

Back to top button