Friday, April 12, 2024

Why Is My Vision Blurry Sometimes

Dry Contact Or Dry Eye

Sudden Blurry Vision | What causes sudden blurred vision and what to do about it.

How long are you leaving your contacts in for? Prolonged use of contact lenses can prevent proper tear formation to keep your eyes moist. While contacts might not cause this dryness, they can certainly worsen dry eye symptoms. Should you feel irritation or itchiness in your eyes, remove your contacts to give them a break.

If the problem persists, your eye doctor can find a solution for you. Artificial tears or a different kind of contact lens might be more comfortable and ease your dry eyes.

There are so many options for contact lenses nowadays that you should be able to find ones that work for your lifestyle. If you’re using long-term or daily disposable contacts, make sure you’re following directions to the letter. Doing so will help reduce the risk of dry eye or other issues. Plus, it will give you the clear vision youâre looking for.

What Is Blurry Vision

Blurry vision is the loss of sharpness of eyesight, making objects appear out of focus and hazy. The primary causes of blurred vision are refractive errors nearsightedness, farsightedness and astigmatism or presbyopia. Blurry vision can also be a symptom of more serious problems.

These problems may include a potentially sight-threatening eye disease or neurological disorder. Blurred vision can affect both eyes, but some people experience blurry vision in one eye only.

Cloudy vision obscures objects and causes vision to appear milky. It is similar to blurry vision and is sometimes indistinguishable. Cloudy vision is usually a symptom of specific conditions such as cataracts.

Rheumatoid Arthritis & Sjogrens Syndrome

Rheumatoid arthritis itself often appears alongside Sjogrens syndrome, another autoimmune disorder that attacks the moisture glands in your eyes and mouth, causing them to struggle with normal function.

This attack on moisture glands can lead to dry eye syndrome, which might also affect the outer vision-focusing surface, called the cornea. Some patients with dry eye symptoms trace the cause back to autoimmune disorders.

You can help control blurry vision with dry eye therapy. Annual eye exams manage your ocular health and identify when autoimmune disorders are affecting your vision.

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How Is It Diagnosed

Youâll need to see an eye doctor. Theyâll give you an eye exam and ask you questions about your symptoms, like:

  • Have you had any pain? Where?
  • How is your vision? Have you noticed any changes?
  • Is it hard for you to look at light or be in a bright place?
  • Does anything make your symptoms better or worse?
  • Have you injured your eye or your face recently?
  • Do you have any other medical conditions?

During the eye exam, the doctor will:

  • Test your vision to see if your eyesight has changed
  • Measure the pressure in your eye
  • Widen, or dilate, your pupils so they can look at the back of your eye
  • Use a microscope and a thin beam of light to check different parts of your eye. This is called a slit lamp exam. They may dilate your eyes or use a special dye to make certain parts easier to see.

They may also do blood tests, X-rays, or other lab tests to check for medical conditions that might be linked to uveitis.

You Slept Weird Last Night

Eye Health

Heres how sleeping can lead to squinting: If your face is smushed against the pillow during shuteye, you might wake up with a serious case of dry eye in the morning. Thats because moving during the night causes your eyelids to snag on your pillow, which pulls them away from the eyeballs. Sahara-like dryness ensues. This is a sign of something called floppy eyelid syndrome, which is more common in heavier guys. They can constantly have blurred vision, discomfort, and irritation, says Dr. Taylor.Blowing air can also dry out your eyes, so nix the bedroom fan. And sleeping with pressure on your eyessay, with your hand or your arm covering themis a no-no, because it can cause compression of the tissue and limit circulation in your orbs, leading to blurriness when you wake up, says Dr. Taylor.

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Do You Need To See Your Doctor

You dont need to see a doctor when blurriness goes away after blinking or rubbing your eyes, or when its sporadic with a clear cause.

But you shouldnt ignore unexplained, persistent blurry vision, or vision problems accompanied by other symptoms. Make an appointment with your doctor for a diagnosis.

Blurry vision in the morning could be a sign of a stroke, which is a medical emergency. If youre having a stroke, you may have other symptoms like:

  • dizziness
  • tingling or numbness on one or both sides of your body
  • slurred speech

Similarly, a head injury and concussion before bed might cause blurry vision in the morning. Other symptoms of a concussion include:

  • lack of coordination

Diagnosis For Blurred Vision

Before determining which solutions fits your needs best, your optometrist will first perform an eye examination to establish the severity of your blurriness. This can provide a clear indication of whether or not treatment is necessary, or if the blurriness can be treated with medicated eye drops or with glasses.

The most common questions your optometrist will ask are:

  • When did you start noticing blurred vision?
  • What do you think worsens or slightly improves the blurred vision?
  • Does anyone in your family have a history of eye conditions?

Your optometrist will then carry out the following examinations:

  • A check of how clearly you can see letters on a chart from distance, alternately covering your right and left eye
  • Refraction tests
  • Examining your external ocular health
  • Examining your internal ocular health
  • Tonometry
  • Avoiding reading fine print or text in dim light
  • Drinking plenty of water to hydrate and lubricate the eyes

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You Might Be Having A Stroke

Vision symptoms are common in full-blown strokes and transient ischemic attacks , also known as mini-strokes. The difference between the two: A mini-stroke is a temporary blockage of blood flow, like if you crimp a flowing garden hose for a few seconds and then release it. A stroke, meanwhile, would be like tying off the hose completely. Mini-strokes function as a warning sign that a full-blown stroke might be imminent. TIA symptoms can come on very quickly, and they might not last too long. They include blurred vision, twinkling lights, or seeing a curtain pull down from the top to the middle of your field of vision, says Dr. Taylor. You might also experience grayed or darkened vision for a few seconds to a few minutes. Other symptoms include change in hearing or taste, confusion, coordination problems, or trouble speaking.A stroke is a medical emergency, so if you think youre having one, you need to seek medical care right awaytreatment is most effective within a few hours of the onset.

Does Anxiety Cause Blurred Vision

How Eyes Work and Why Some People Have Blurry Vision?

While anxiety is known to cause a wide range of physical symptoms, blurred vision isnt generally considered a common symptom of anxiety. But some people may experience vision that appears blurred when they become anxious.

Can High BP cause blurred vision?

High blood pressure can damage the tiny, delicate blood vessels that supply blood to your eyes, causing: Damage to your retina . Damage to the light-sensitive tissue at the back of your eye can lead to bleeding in the eye, blurred vision and complete loss of vision.

Can anxiety cause blind spots?

Anxiety can cause tunnel vision and visual snow and perhaps other visual spots as well. In addition, floaters, tunnel vision and visual snow can cause you to become worried, anxious and hypervigilant because you think they are a symptom of a serious eye problem.

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Could It Be Multiple Sclerosis

Blurry vision is often one of the earliest symptoms of multiple sclerosis . The disease causes inflammation along the nerve that connects your eyes to your brain, called the optic nerve. That causes a condition called optic neuritis, which can give you blurry sight, loss of color vision, and pain when you move your eyes. It often happens in just one eye.

Besides blurry vision, MS also causes:

  • Trouble with balance

If your doctor thinks you might have a brain tumor, they’ll use different tests to check how well your brain and spinal cord work, as well as imaging tests to see inside your head. Learn more about the different types of brain tumors.

Tears That Have Dried Overnight

Your eyes are constantly producing tears even when youre sleeping to keep the eyes moist, nourished and clean.

If you wake up with blurry vision, its possible that tears dried on the surface of your eyes while you slept. Dont worry, blinking a few times once youre awake should break up the buildup on your corneas and restore clear vision.

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When To Be Concerned About A Change In Your Eyesight

If youve always had great eyesight and suddenly find yourself blinking or squinting because things seem a little fuzzy, its time for a checkup. Many cases of blurry or cloudy vision are caused by nearsightedness, farsightedness or astigmatism common issues that are typically corrected with glasses or Lasik surgery. However, your changing vision could be an important early symptom of a more serious disease or medical condition.

“Not all cases of blurry vision are caused by problems with the structure of the eye,” said Geisinger ophthalmologist David A. Carl, MD. “Environmental factors, lifestyle factors, aging and disease may also affect how well you see.”


Almost 25 million Americans aged 40 and over have cataracts. By the time they reach 80, more than half of all people have some form of cataracts.

“A cataract is a clouding of the eyes lens, which is normally crystal clear,” said Dr. Carl. “While its more common to develop cataracts as you grow older, age is not the only cause.”

Doctors think that environmental factors such as exposure to UV rays, smoking and drinking alcohol may also increase your chances for developing the condition. Some babies are born with cataracts due to genetic defects, developmental issues or exposure to a disease called rubella during pregnancy.


“Conversely, when blood sugar drops too low in response to medication that increases insulin in the blood, diabetics may experience temporary blurriness,” said Dr. Carl.


Conditions Requiring Immediate Evaluation

What are the Causes of Blurry Vision?
  • Detached or torn retina. This requires emergency surgical repair to avoid irreversible vision loss.
  • Stroke. Prompt and appropriate treatment for the type of stroke youâre having is critical to prevent the death of your brain cells.
  • Transient ischemic attack. Although symptoms resolve within 24 hours on their own, a TIA is a serious warning sign for stroke. You may be given blood thinners to lower the risk of a stroke in the future.
  • Wet macular degeneration. Medications injected into the eye may help improve vision. Treatment with laser photocoagulation can slow vision loss but canât restore your vision. Special vision-enhancing devices are sometimes used to help you see better.
  • Angle closure glaucoma. You will need several different medications, including topical and oral pressure-lowering drugs, and occasionally steroids to reduce the fluid in your eye. Many times, you may require a laser procedure called laser iridotomy.
  • Endophthalmitis. An ophthalmologist will inject antibiotics or an antifungal medication into your eye. They may also give you a steroid to reduce swelling.
  • Concussion. A concussion should be evaluated, but visual symptoms usually resolve in 7 to 10 days on their own. If problems with eye movement or focus persist, your doctor may recommend vision therapy.

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How Is It Treated

It’s important to treat uveitis right away so it doesnât permanently scar your eye or lead to other serious problems, like glaucoma or cataracts.

Your doctor may give you steroid eye drops to ease the swelling, redness, and pain. Steroid shots or pills are other options. In addition the doctor may ask you to take eye drops like atropine which dilate your pupil and prevent painful spasm of your eye. This can make your vision blurry and sensitive to light.

Doctors can treat some types of the condition with a small capsule that slowly releases steroids inside your eye. This is usually a treatment for long-lasting cases. Many of these cases are in just one eye. But with this treatment, you can be more likely to get cataracts or glaucoma. The surgery to put the capsule in your eye wonât require a hospital stay. If your doctor recommends this option, ask them what you can expect.

If you take oral steroids for a long time, you may have side effects, like cataracts, stomachulcers, bone thinning , diabetes, and weight gain. Ask them how the treatment may affect you.

When To Call A Healthcare Provider

If you suspect that you are dealing with an injury, a detached retina or other serious condition, don’t hesitate to call a healthcare provider or go to an ER. Keep in mind that blurred vision may indicate a life-threatening stroke, which requires emergency treatment.

Most of the time, blurry vision can be safely handled outside of the ER. A 2017 study shows that approximately 1 in 4 of those who visited the ER for an eye issue had a minor problem such as pink eye, a swollen eyelid, or eyelid bumps.

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Conditions Related To Blurred Vision

The cone cells on the macula become damaged, leading to loss of central vision. There are two main types: dry AMD, which progresses slowly but is untreatable, and wet AMD, which progresses more rapidly but is treatable, especially if spotted early.

Cardiovascular disease

Blurred vision that occurs with double vision can be a sign of a health emergency, such as a brain haemorrhage or stroke.

A cataract is the gradual clouding of your lens, which is a transparent disc behind your iris . Its common in people over 65, though it can happen earlier. Besides blurred vision, symptoms include sensitivity to light and a dulling effect on colours. Luckily, its easily treated with cataract surgery.


Over time, diabetes can lead to a condition called retinopathy, when the tiny blood vessels at the back of your eye become blocked and leak. This damages your retina, which is essential for vision and can lead to sight loss. However, it can be prevented if detected early through regular screening.

There are four types of glaucoma, which can lead to a build-up of pressure in your eye, damaging the optic nerve. This can permanently damage your sight, especially your peripheral vision, but once its detected, sight loss can usually be prevented.

Multiple sclerosis

Eye Conditions And Diseases

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If you have sudden blurry vision in one eye and are over age 60, its possible you have developed a macular hole in the central zone of your retina.

Sudden blurry vision also may be a symptom of a detached retina, eye herpes or optic neuritis .

Certain eye conditions and diseases can cause permanent loss of vision. Its vital to see an eye doctor for diagnosis and treatment if you experience sudden blurry vision.

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Symptoms Of Blurred Vision

Oftentimes, patients experience a number of symptoms along with blurry vision. In addition to the symptoms mentioned above, other symptoms can include:

  • eye pain
  • loss of central or peripheral vision
  • poor near vision

If you experience blurred vision along with sudden nausea, stiff neck, severe headache, and/or vomiting, call 9-1-1 immediately.

Limitations Of The Artificial Lens

The natural lens inside the eye is responsible for approximately one third of the prescription of your eye. After this lens is removed, it must be replaced with an artificial lens to continue to fulfill this role.

Artificial lens used in cataract surgery image by Frank C. Müller, CC BY-SA 3.0, via Wikimedia Commons

There are 3 main types of artificial lenses used during cataract surgery

  • Standard or basic lenses
  • Toric or astigmatism correcting lenses
  • Premium, lifestyle or multifocal lenses

Standard lenses are only capable of correcting vision at one focus. Typically after cataract surgery, a power of this lens is selected to optimize distance vision. What this means is that this lens will ONLY focus for distance vision. Your vision will be blurry when trying to read up close. Reading glasses will correct this up close vision. Also check out What Is The Best Reading Glasses Prescription After Cataract Surgery?

In addition standard lenses will NOT correct astigmatism. Any astigmatism you have remaining after cataract surgery will blur vision. Prescription glasses will correct this remaining astigmatism to sharpen up vision.

Toric lenses are an upgrade from standard lenses. These lenses function like standard lenses EXEPT they can correct astigmatism. Thus, when these lenses are optimized for distance vision, you will have sharp distance vision but you will still need reading glasses to see up close.

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You Sleep With Your Contacts In

If you don’t use contact lenses properly, they can cause sight-robbing infections.

Contact lenses move across the eye every time you blink, creating micro-scratches on the surface of your eye. Infection-causing microorganisms can get caught under the lens and get into the scratches.

Sleeping with your contacts in, said Dr. Le, “is a perfect petri dish to grow those organisms and cause corneal ulcers,” open sores on the cornea that can blur vision. “Always, always take out at night,” added Dr. Shah, or toss disposable lenses at the end of the day.

Could It Be Diabetes

How To Get Rid Of Blurry Eyes In The Morning? Ways to Cure Naturally!

The condition raises your risk for an eye disease called diabetic retinopathy. Over time, high blood sugar can damage the tiny blood vessels in your retina, the part of your eye that senses light. That can lead to swelling in a part of the retina called the macula, new and unwanted blood vessels growing in the eye, and bleeding inside the eye.

Along with blurry vision, diabetic eye disease may also cause:

  • âFloatingâ spots in your field of vision
  • Permanent loss of vision

Early treatment is the best way to ward off permanent damage. So protect your eyes from diabetes by getting them checked at least once a year. Learn more about the symptoms of diabetic retinopathy.

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