Common Eye Disorders

As a family eye doctor in a central Minnesota community, I see many patients with common eye disorders that may or may not be serious.

Also, people often will call or e-mail with questions regarding whether a certain symptom such as eye redness or swollen eyes warrants a visit to an eye doctor.

This guide was created to help you learn the type of eye disorder you may have and what should be done about it. But these guidelines are only an overview and definitely should not replace a consultation with your own eye doctor.

Typically, common eye disorders can be broken down into major eye symptoms, making it easier to sort them out and come up with specific guidelines. Major categories include:

  • Redness
  • Itching
  • Swelling
  • Burning
  • Trauma
  • Pain
  • Blur (decrease in vision)
  • Spots, flashes and floaters
What if Your Eyes Are Red and Irritated?

Red and bloodshot eyes have many causes, including infection, inflammation, allergy, broken blood vessels and trauma. If the white of your eye (sclera) looks red or pink, you might have one of the following conditions:

  • Pink eye. If you have kids, you almost certainly know about an eye infection known as pink eye. Adults can get it, too. If the redness is from a form of pink eye known as conjunctivitis, you also will have symptoms such as itching, burning or stinging, eye discharge, swelling, watering — or a combination of the above. Some forms of pink eye are contagious, and some are not. Allergic conjunctivitis, for example, is not contagious. But viral and bacterial forms of pink eye are contagious. So it’s best to see your eye doctor or family doctor for diagnosis and possible treatment. Quick Tip: Until you know more about what may be causing your problem, you should avoid rubbing your eyes. Make sure you wash your hands often. For relief, use cool, wet compresses on the outside of your closed eyelids.
  • Eye allergies. Allergies can be seasonal (spring and fall), or they can happen when something irritating (allergen) invades your eyes, like cat dander or fumes. Symptoms of eye allergies include itchy eyes and red, watery and puffy eyes. How your eyes are affected may depend on the time of year and type of plants you have in the area where you live. We Minnesotans tend to have lots of seasonal allergy problems in the spring and fall. But many people can also have year-round allergies because of dust mites, molds, etc. Quick Tip: Try cold, wet compresses on the outside of your closed eyelids. You also may find relief if you take an over-the-counter antihistamine orally. If the allergy continues to annoy you, you may need to see your eye doctor for a prescription to help you deal with symptoms.
  • Broken blood vessel. Tiny blood vessels in the white of the eye can break from straining, lifting, rubbing or for no reason at all. When this happens, the sclera becomes bright red from the blood leaking under the clear conjunctiva and the condition is called a subconjunctival haemorrhage. A red eye from a subconjunctival haemorrhage looks scary, but usually, it is harmless and ordinarily isn’t considered an emergency. Quick Tip: To be on the safe side, you should see your eye doctor within a day or two after noticing symptoms to make sure there’s no underlying cause for the broken vessel. Otherwise, there really is no treatment other than time for most of these blood leaks. But I always tell my patients to make up a really good story, because everyone will ask them what happened!
  • Eye trauma. Getting hit in the eye can certainly cause redness, along with pain and blurred vision. The eye may be scratched or gouged, but there also could be hidden damage inside the eye, such as a detached retina, that can be very serious and must be treated. Unless the hit is very light, an eye doctor should treat eye traumas right away. Quick Tip: For some immediate relief, put a very cold compress or ice pack on the injured eye. Avoid rubbing it. If you can’t reach your eye doctor, go to an emergency room or urgent care center for help.
Itching and Itchy Eyes

Almost all eye itching is caused by some sort of allergy. Very often, mild itching can be helped with over-the-counter lubricating eye drops. I’d avoid the ones that take away redness (decongestants), as they can be addictive. You can also use cold compresses or ice packs to help with itchy eyes.

More severe itching may need extra help, such as oral antihistamines or prescription eye drops. Although itchy eyes are not an emergency, you still may need to consult your eye doctor for advice or a prescription.

If your eyelids are red and inflamed, you could have blepharitis. Make sure you visit your eye doctor to determine the cause and appropriate treatment.

Quick Tip: Try to avoid rubbing your eyes! Rubbing releases chemicals called histamines that actually make the itching worse.

Blurred Vision

If you have blurred vision that happens suddenly and persists, consider this an emergency. See your eye doctor, or visit an emergency room/urgent care center.

If one eye becomes blurry or goes dark suddenly, like a curtain coming down, this is an emergency and should be checked out by your eye doctor or an emergency room/urgent care centre. This could indicate a retinal problem, like a detachment, or even a stroke.

If you have some minor blurring that comes and goes, this could mean tiredness, dryness or eye strain. Keep in mind that many eye conditions can cause some blurred vision, including pink eye, allergies, dry eyes and even a lot of near vision work. Most of these are not emergency situations.

Quick Tip: For mild blurry vision, try resting your eyes. If the blurry vision persists, make an appointment for an eye exam.

Puffy Eyes

Unusual puffiness around the eyes often is a sign of an allergy. Of course, trauma such as getting hit in the eye also can cause the eyes to swell.

Quick Tip: If puffy eyes are caused by an allergy, you may have to take an over-the-counter decongestant orally to alleviate symptoms.

Burning Eyes

Burning eyes can be caused by allergy, dryness, tiredness, vision stress (like computer work) or a combination of the above. See your eye doctor if the burning persists, but this symptom usually is not an emergency.

Quick Tip: Usually, eye burning or stinging can be relieved with over-the-counter lubricating eye drops and rest. Applying cool, moist compresses over your closed eyes also can help.

Eye Pain

Eye pain can be sharp or dull, internal or external, constant or intermittent, stabbing or throbbing. As a general rule, if you have eye pain along with redness, you should consider this an emergency and either see your eye doctor or go to an emergency room or urgent care centre right away.

Constant eye pain, especially when moving your eyes or gently pushing on your eyes, can sometimes indicate inflammation of some of the inner eye parts. This means you should try and see your eye doctor as soon as possible for diagnosis and treatment.

I often help people with rheumatoid arthritis or fibromyalgia (chronic pain throughout the body) who are having related eye pain. Eye pain sometimes is caused by dry eyes, which needs to be treated with over-the-counter or prescription medication. Occasionally, eye pain is caused by something serious, like uveitis. This is an inflammation of the inner eye tissues, like the iris. Again, this type of condition should be treated as soon as possible.

Eye pain with blurred vision should be considered an emergency and should be investigated as soon as possible by your eye doctor or by the emergency room/urgent care centre.

Quick Tip: If your eye pain is dull like a headache in your eye, but there is no redness or blurred vision, this could be caused by overuse, eye strain or even sinus problems. I suggest seeing your doctor only if it doesn’t clear up with rest or perhaps some Tylenol or Advil.

Spots, Flashes and Floaters

Most spots and floaters are normal. They are caused by bits of protein and other tissue embedded in the clear, gel-like material (vitreous) that fills the inside of the eye.

As we age, the vitreous becomes more fluid and these thread-like strands and shapes move (“float”) more easily within the vitreous, which makes them more noticeable. Also, the vitreous can separate or detach from its connection to the retina, causing additional floaters.

But some floaters, especially when accompanied by flashes of light, can indicate something serious is happening inside your eye that could cause a detached retina.

As a general rule, if you have a few little dots, threads or “bugs” that come and go depending on how tired you are or what kind of lighting you’re in, these are normal floaters. But if you suddenly see flashes of light, clouds of floaters, swirly mists or a curtain over part of your vision, it’s best to see your eye doctor or an emergency room/urgent care centre. They’ll dilate your pupils to see what’s going on inside your eyes and make sure it gets treated if need be.

Most retinal detachments can be helped if treated soon. If retinal detachments are ignored, however, they can lead to a loss of vision or even blindness.

Quick Tip: Most vitreous detachments creating spots and floaters just need to be watched. But you have no way of knowing whether you have a vitreous detachment or a far more serious retinal detachment. So in either case, make sure you see a doctor.

Foreign Object (Something in the Eye)

Getting something in your eye seems like it should be an emergency, and it often is. Whether your eye is invaded by a piece of metal, a thorn or sticker or a sharp object, it’s critical that you see an eye doctor or an emergency room/urgent care center right away.

Don’t rub your eye or attempt to remove whatever is in there. You could cause more damage. Loosely tape a paper cup (or eye shield if you have one) over your eye and seek help.

Quick Tip: Let’s also be practical. Not everything that gets in your eye is serious. We all have little bits of something in our eyes at times. If you know it’s just a piece of dust that’s irritating your eye, you can try rinsing it with saline solution or using lubricating eye drops. If you are able, try turning your eyelid inside out to see if you can dislodge the particle. If none of these home remedies works, then it’s off to the doctor.


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