Do you sometimes feel that when you read a book or newspaper, watch TV, or try to read a sign on a bus, the letters seem a little blurry? If you squint, it may become a little clearer, but it is not very clear. This is what we medically call ' blurred vision' . In fact, this is the most common symptom reported to a doctor regarding eye problems.
How does a doctor find the cause of this?
When you go to see a doctor with this problem, he will ask you a few questions and try to find the cause. It's like a detective.
You might be asked things like:
- "Do you have any other medical conditions such as diabetes , hypertension , HIV/AIDS, or sickle cell anemia ?"
- "Can you describe exactly how you feel when you say your vision is blurry?"
- "Are there any other symptoms besides this? For example, do you see small objects floating in front of your eyes (eye floaters) ?"
- "Have you fallen anywhere recently? Have you hit your head?"
- "Are you taking any special medications, such as steroids, that can affect your vision?"
In addition to answering these questions, the doctor will examine your eyes and, if necessary, perform several other tests to determine the exact cause.
Common causes of gradual blurring of vision over time
There can be many reasons for blurred vision. Some of them are very common. Let's take a look at what they are.
| Medical condition | Simply put... |
|---|---|
| Refractive Errors | This is the most common cause of blurred vision. It occurs when the eye is unable to focus an image accurately. This includes conditions such as nearsightedness, farsightedness, and astigmatism. |
| Dry Eye Syndrome | If your vision becomes a little clearer when you blink, you may have this condition. You experience itchy, red, and painful eyes along with blurred vision. |
| Age-related macular degeneration | It is a leading cause of vision loss among the elderly. It primarily affects central vision, causing the inability to see things directly in front of the eyes. |
| Diabetic Retinopathy (eye disease caused by diabetes) | Anyone with diabetes is at risk. This can damage the blood vessels in the retina, leading to complete loss of vision. |
| Glaucoma | This condition occurs when fluid pressure inside the eye increases, putting pressure on the optic nerve. This can also lead to gradual loss of vision. |
| Cataracts | A cataract occurs when the lens of the eye becomes cloudy and opaque. Vision becomes blurry and you may see halos around lights at night. |
| Optic Neuritis | Swelling or infection of the optic nerve. This can also be a symptom of another disease, such as multiple sclerosis. |
If your vision suddenly becomes blurry, this is an emergency!
Although vision loss usually occurs gradually, some medical conditions can cause sudden, sudden vision loss. These are considered medical emergencies.
If your vision suddenly becomes blurry, it could be caused by things like:
- Stroke or Transient Ischemic Attack (TIA)
- A sudden, very high blood pressure
- Bleeding into the eye (Hyphema)
- Retinal Detachment
- Concussion (a blow to the head)
- Various eye infections
- Migraine
- External injury to the eye
If you suddenly experience blurred vision or feel like you are losing your vision, go to a hospital's Emergency Department (ETU) without delay. This is not something to be trifled with.
What are the treatments for this?
Treatment for blurred vision depends on the underlying cause.
Eyeglasses and Contact Lenses
These are the simplest solutions to blurring caused by causes such as refractive errors.
Medications
Your doctor will prescribe medication to treat the underlying condition that is causing your blurred vision. For example, there is even a newly approved eye drop (pilocarpine hydrochloride) to treat presbyopia, a condition that causes nearsightedness as you age.
Surgery
The doctor may refer you for cataract surgery or surgery to correct vision problems, such as LASIK .
What can we do to protect our eyes at home?
While a doctor is treating your vision problem, there are some things you can do to keep your eyes healthy.
- Get plenty of rest. Rest is essential for the eyes.
- Stay away from allergens. Things like smoke and dust are harmful to the eyes.
- Be sure to wear sunglasses when you go out in the sun. They help protect your eyes from the sun's harmful rays.
- Think about safety. Wear safety glasses when doing work that could be dangerous to your eyes (such as carpentry, metalwork).
- Eat a good nutritious diet. Eat greens, vegetables, and fruits that contain vitamins and minerals that your eyes need. Drink plenty of water to avoid dehydration.
- Use eye drops. If your eyes are dry or irritated, use eye drops recommended by your doctor .
Some frequently asked questions
Why does my vision get blurry when I get up?
Some people may experience dizziness and blurred vision when getting up from a bed or chair. This can be a symptom of a circulatory condition called Postural Orthostatic Tachycardia Syndrome (POTS) . If this continues, it's important to tell a doctor.
Can dehydration cause blurred vision?
Yes. Dehydration can cause dry eyes. When the eyes become dry, vision can become blurry.
What is the difference between 'Cloudy vision' and 'Blurred vision'?
Both of these are a decrease in the clarity of vision, but there is a slight difference. Blurred vision means that things are 'out of focus' and appear blurry. It may be slightly clearer when you squint. Cloudy vision means that you see as if you are inside a fog or a cloud. Here, your vision is not clear even when you squint.
Take-Home Message
- Although blurred vision is common, it should never be ignored. It could be a symptom of an underlying condition.
- If your vision gradually becomes blurry over time, it's likely a vision problem or a condition that comes with aging. See a doctor and get your eyes checked.
- Sudden, sudden blurred or loss of vision is a medical emergency! Go to a hospital's Emergency Department (ETU) immediately.
- If you have a disease like diabetes, following your doctor's instructions and controlling it well is very important for the health of your eyes.
- Even if there are no symptoms, regular eye exams can help prevent many problems that may arise in the future.
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