18 main and common causes of red eyes and their solutions

The word red eyes are used to describe inflammatory conditions of the eye. Blood vessels in the eye usually appear when they swell near the surface of the eye. Some of them will cause itching or inflammation that will force you to see an ophthalmologist. If you have been exposed to red-eye problems for various reasons, in this section, we will introduce you to the appropriate solutions to treat this problem, but we must first address the causes of this problem.

Dry eye syndrome

Dry eye syndrome is common in many people and occurs when a type of artery rupture occurs in the front of the eye. When your eyes become too dry, they gradually turn red. You will develop this syndrome when you spend a lot of time in front of electronic screens such as a computer or do not get enough sleep, or wear contact lenses for a long time. If the glands sweat or produce fat during these times, dryness will increase.

Treatment of dry eye:

Artificial tears keep the eyes moist. Using artificial tears, redness, and inflammation of the eyes can be reduced.

Pink eyes

In some cases, red eyes are caused by pink eyes, which is an inflammation or infection that occurs on the outer layer of the eye. This is usually due to allergies, bacteria, viruses, or toxins, which is usually not a serious problem but is accompanied by itching, burning and discharge tears and mucous discharge such as photosensitivity.

Pink eye treatment:

In this case, you should see a doctor determine the cause first and give you the appropriate treatment. The doctor first determines the cause of the eye infection; if the infection is viral, it takes 3 to 2 weeks to heal. Steroid drops can help treat the redness and swelling of a severe viral infection. If the infection is bacterial, your doctor will prescribe an antibiotic eye drop with a soothing effect within a few days.

Inflammation of the eyelid

Occurs due to poor eyelid hygiene. Eyelid sweat glands, allergic reactions, and bacterial infections can cause eyelid inflammation. In this condition, burning sensation, rupture of part of the eye, itching, swollen and red eyelids, and dry eyes occur. This condition is not shared and usually does not affect vision.

In this case, you should observe good eye hygiene and use unique eyelid scrubs and take medications prescribed by your doctor.


Uveitis causes a type of redness, inflammation, pain, blurred vision, and sensitivity to light. The symptoms of this problem usually get worse and worse quickly.

In this case, you must use prompt treatment to prevent further more difficult problems.

Excessive use of eye drops

Are you in the habit of using eye drops immediately after waking up? Excessive use of eye drops is the leading cause of red eyes. Chronic use of eye drops causes inflammation of blood vessels. You should consult your doctor before using any eye drops.

Use eye lenses

The use of contact lenses is sometimes the cause of red eyes. Some people will notice redness of the lens immediately after placement. If you feel uncomfortable after using the lens, you probably need eye drops; these drops are for pre-lens use to prevent dry eyes.


Sometimes redness of the eye occurs as a result of the injury. Eye damage can result from repeated use of mascara or scratching the eye with the finger, which is more likely to transmit the infection.

Corneal infection

If an eye’s cornea becomes infected, its blood vessels become swollen and dilated, and its cells produce a lot of redness. In this condition, the cornea does not have enough blood vessels inside. Usually, too much oxygen and nutrients get into the eye in these conditions, and too many nutrients cause this infection inside the eye. In such cases, you should take appropriate treatment to prevent vision loss and blindness. This treatment usually includes antibiotics and can also be treated with antifungal or antiviral drugs.


When internal bleeding occurs, the white part of the eye will become completely red. This happens when one of the blood vessels ruptures, and new tissue covers the eye’s white part. This blood has no place to go, and as a result, it spreads. If these vessels bleed profusely, excessive dryness occurs in the eye. This is a terrible phenomenon, but it does not cause severe and permanent damage to the eyes. Lifting too heavy objects, putting too much pressure on the eyes, sneezing, or coughing too much can make it worse and worse.

In this case, you must see a doctor determine the cause by testing and take treatment strategies. In this case, they measure the eye’s pressure and look inside your eye to detect any damage in it.

Green eye water

Sometimes redness of the eyes is a signal of a severe condition. This serious eye condition is an urgent problem that needs to be treated quickly. Green discharge occurs when the eye’s internal pressure increases rapidly, causing severe redness and pain, and blurred vision. Slowly See a doctor as soon as possible.


This also causes inflammation of the thin, transparent layer of eye tissue. Episcleritis will cause mild eye pain and redness. Sometimes touching it can cause a feeling of pain.

In some cases, steroids are prescribed to treat it.


Red eyes due to allergies are accompanied by burning and itching. In this case, the blood vessels in the front of the eye become more extensive, and the fluid inside it will also cause swelling.

Treatment of red eyes:

Standard treatment for eye allergies helps reduce redness. Your doctor will also give you specific instructions. To eliminate inflammation and redness of the eyes, apply a cold compress on the eyes several times a day for 15 minutes, talk to your doctor about your allergies, and how to control them. Your doctor will usually prescribe antihistamines to reduce your body’s response to allergens and inflammation. But antihistamines can cause dry eyes, so use artificial tears at the same time to prevent dry eyes.


Pregnancy causes many changes in the body’s hormones, which can also affect the production of tears. Therefore, it makes your eyes sensitive, and your eyes may be sensitive to light.

Wearing contact lenses during pregnancy is very difficult and challenging. Many pregnant women prefer to wear glasses instead of lenses after pregnancy.

Computer vision syndrome

A lack of moisture can cause dry, red eyes. Tears rejuvenate the eyes when blinking and are one of the fastest reflexes. Eye blinking is halved when working with a computer, resulting in dryness and redness.


Cigarettes release harmful chemicals. These chemicals cause severe allergies in the eyes and cause inflammation.

Smoking also increases the risk of cataracts, which is a blurring in the lens of the eye. Quitting smoking or breathing in the open air is a way to treat redness in these conditions.


Some people experience redness of the eye after spending time in the pool, which also occurs due to the enlargement and bulging of blood vessels near the eye’s surface. The chlorine in the pool water is the cause of this itching and allergies, so it is better to use swimming goggles.

Lack of sleep

If you do not get enough sleep, your eyes will show this. Eyes need to produce tears always for proper functioning, which usually happens with blinking. Do not allow your sleep to be prolonged, and your eyes not to blink for a long time, and face dryness. On the other hand, lack of sleep reduces the flow of fluid in the eyes, which is again a factor for redness and dryness. Excessive wakefulness and lack of sleep are also destructive factors that destroy the health of the whole body.

Artificial tears are a quick cure for the eyes’ redness, but getting enough 7 or 8 hours of sleep a night can prevent redness and dry eyes.

Side effects of some drugs

Antihistamines alone do not cause redness and dry eyes. Sleeping pills and anti-anxiety drugs, and even painkillers such as ibuprofen can cause red eyes. These drugs dry and red the tissue inside and around the eyes by reducing blood flow.


Artificial tears can be used for quick treatment. But for treatment, you should talk to the doctor who prescribed these drugs to change the dose of the drug or use drugs with fewer side effects.

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