Thursday, 4 January 2018

8 Things That Causes Red Eyes You Should Be Aware Of

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Bloodshot or red eyes occur when small blood vessels that are present on the surface of the eye become enlarged and congested with blood. This happens due to an insufficient amount of oxygen being supplied to the cornea or the tissues covering the eye.


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Bloodshot eyes by themselves are generally not a reason to be overly concerned, but when coupled with eye pain, abnormal drainage, or impaired vision this can indicate a serious medical problem. The term "red eye" is used to describe red, bloodshot eyes. Bloodshot eyes are usually painless and develop when blood vessels near the surface of the eye become enlarged and dilated.

Some culprits can cause your eyes to feel inflamed and irritated, so you may find yourself seeking relief from your eye doctor. Many people suffer from red eye every once and awhile, but a red eye is not normal.

Symptoms can include:

  • Red eyes
  • Pain in the eye
  • Stinging or burning eyes
  • Foreign body sensation
  • Excessive tears
  • Discomfort when wearing contact lenses
  • Blurry vision
  • Eye fatigue
  • Stringy eye discharge
  • Increased discomfort after watching television or reading
  • Soreness of the eye
  • Sensitivity to light
  • Mild to severe eye discharge
  • Reduced vision
  • Itchy eye

Things That Can Cause Red Eyes 

Subconjunctival Hemorrhage 
Subconjunctival hemorrhages usually occur due to a minor injury or trauma to the eye. Even rubbing the eye too hard can cause a hemorrhage. A subconjunctival hemorrhage is when blood builds up under the conjunctiva.
The conjunctiva contains many blood vessels and capillaries. These vessels can break and cause blood to leak into the area between the conjunctiva and the white of the eye.
When this happens, a small amount of blood builds up under the conjunctiva. This small accumulation of blood is called a subconjunctival hemorrhage. The minor bleeding under the eye's outer membrane causes bright red spots to appear on the white on the eye.

Dry Eye Syndrome
If your eyes are red and bloodshot due to dry eye syndrome, it might be helpful to instill lubricant eye drops into your eyes. A common cause of bloodshot eyes is dry eye syndrome. It occurs when there are not enough natural tears to keep the front part of the eye lubricated. When your eye becomes dry, it also becomes very red and irritated.
Dry eyes can occur if you stare at the computer screen for an extended amount of time, if you don't get enough quality sleep, or if you wear your contact lenses for too long.
You can also develop dry eyes from medications you take chronically. Hormonal changes occurring inside your body can also cause your eyes to become dry and irritated. Dry eyes can also develop if the glands that produce tears are plugged up with sweat and oil.


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Conjunctivitis
Conjunctivitis is also known as pink eye and is mostly caused by viruses, which may be spread by the hands.
Conjunctivitis , commonly known as pinkeye, is an infection that includes swelling and irritation of the conjunctiva. The conjunctiva is a thin transparent membrane that lines the eyelid and loops back to cover the the white part of the eye.
An infection of the conjunctiva irritates the blood vessels causing them to swell up. It is this inflammation that makes the whites of the eyes appear reddish or even a bit pink.
Viruses cause up to 80 percent of all cases of conjunctivitis. Pink eye is prevalent among school children and is very contagious. The infection is commonly spread through direct contact with contaminated fingers or personal items. It is often associated with an upper respiratory infection and spread through coughing.

Blepharitis
Blepharitis causes inflammation of the eyelid and eyelashes and may be caused by poor eyelid hygiene. Oily eyelid glands, allergic reactions, bacterial infections, or lice on the eyelashes are also common causes of blepharitis.
If you have blepharitis, you may notice a gritty or burning sensation in your eyes, excessive tearing, itching, red and swollen eyelids, dry eyes, or crusting of your eyelids. The condition is not contagious and usually does not cause permanent damage to your eyesight.

Corneal ulcer
A corneal ulcer is an open sore on the cornea that is typically caused by bacterial infections. They often appear following an eye injury, trauma, or some other type of damage. If the eye's cornea becomes infected, nearby blood vessels become enlarged and swollen as cells rush in to help fight the infection. These cells can cause visible redness.

Episcleritis
Another condition that can give you a bloodshot appearance is episcleritis . This is an inflammation of the thin clear layer of tissue that lies between the conjunctiva and scleroderma. Episcleritis causes mild eye pain and irritation along with eye redness. Sometimes the eyes become tender to the touch. Although it may go away on its own, topical steroids are often needed.

Allergies
Your eyes can become bloodshot because of
allergies. Red eyes associated with burning and itching are often caused by allergies. The eyes become red because the blood vessels in the front part of the eye dilate and become larger. Fluid accumulates and causes swelling.
Standard allergy treatments can help reduce eye redness. Your doctor may also have recommendations based on your specific situation.

Injury
Redness sometimes occurs with an eye injury. Injuring your eye could be as simple as sticking yourself with a mascara wand or accidentally wiping your eye with a sharp fingernail.
When you injure your eye, blood vessels inside the eye enlarge and dilate to bring blood and cells to heal and repair the injury. A red eye resting from an injury is also a warning sign to let you know that something is wrong with your eye. Visit your doctor to make sure that you did not harshly damage your eye.

Common treatments include eye drops, antibiotics, creams, and oral medications. Most conditions are readily treatable and, if caught early, do not cause any permanent long-term damage.
Some serious medical conditions, including leukemia, sarcoidosis, and juvenile idiopathic arthritis , can also cause a red eye. As a result, getting a proper diagnosis is critical.



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Author: Richard Smith