what is the cause of conjunctivitis
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- Conjunctivitis is often called pink eye or red eye because it can cause the white of the eye to take on a pink or red color. The most common causes of conjunctivitis are viruses, bacteria, and allergens.iral conjunctivitis. 1  Can be caused by a number of different viruses, many of which may be associated with an upper respiratory tract infection, cold, or sore throat. 2  Usually begins in one eye and may progress to the second eye within days. 3  Spreads easily and rapidly between people and can result in epidemics.
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Conjunctivitis Conjunctivitis when caused by an infection is most commonly caused by a viral infection. Bacterial infections, allergies, other irritants and dryness are also common causes. Both bacterial and viral infections are contagious and passed from person to person, but can also spread through contaminated objects or water.onjunctivitis, also known as pink eye is inflammation of the conjunctiva (the outermost layer of the eye and the inner surface of the eyelids).
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Viral Conjunctivitis (Pink Eye) Viruses are a common cause of conjunctivitis in patients of all ages. A variety of viruses can be responsible for conjunctival infection; however, adenovirus is by far the most common cause, and herpes simplex virus (HSV) is the most problematic.
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- Conjunctivitis of the bulbar and/or palpebral conjunctiva can be caused by allergies, toxins, fungi, viruses, or bacteria. Bacterial conjunctivitis due to gram-positive bacteria such as Staphylococcus aureus or Streptococcus pneumoniae is generally milder than conjunctivitis caused by gram-negative bacteria. Mild conjunctivitis is usually benign and self-limited and can be monitored without treatment or easily treated with antibiotics.
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- Background. Inflammation of the bulbar and/or palpebral conjunctiva, or conjunctivitis, can be caused by allergies, viruses, or bacteria. Bacterial conjunctivitis is commonly caused by staphylococci, streptococci, chlamydial organism, and gonococci.
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Conjunctivitis Conjunctivitis when caused by an infection is most commonly caused by a viral infection. Bacterial infections, allergies, other irritants and dryness are also common causes. Both bacterial and viral infections are contagious and passed from person to person, but can also spread through contaminated objects or water.onjunctivitis when caused by an infection is most commonly caused by a viral infection. Bacterial infections, allergies, other irritants and dryness are also common causes. Both bacterial and viral infections are contagious and passed from person to person, but can also spread through contaminated objects or water.
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- Infectious causes of an inflamed eye and conjunctivitis include bacteria, viruses and fungi. Non-infectious causes include allergies, foreign bodies and chemicals.
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Pink Eye (Conjunctivitis) Symptoms, Treatments And Prevention 1 Caused by bacteria, this type of conjunctivitis can cause serious damage to the eye if left untreated.  Allergic conjunctivitis. Caused by eye irritants such as pollen, dust and animal dander among susceptible individuals. Allergic conjunctivitis may be seasonal (pollen) or flare up year-round (dust; pet dander).
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- The symptoms of conjunctivitis vary depending on the cause. Typically, both allergies and infections cause a severe redness or 'meaty' appearance of the conjunctiva. This is caused by edema or fluid build-up and an increase in the size and number of blood vessels within the tissue. Either allergies or infections cause the eye to discharge or 'weep.'.
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conjunctivitis Conjunctivitis is the inflammation of the conjunctiva, a thin, delicate membrane that covers the eyeball and lines the eyelid. It may be caused by a viral infection, such as a cold or acute respiratory infection, or by such diseases as measles, herpes simplex, or herpes zoster.onjunctivitis may be caused by a viral infection, such as a cold, acute respiratory infection, or disease such as measles, herpes simplex, or herpes zoster. Symptoms include mild to severe discomfort in one or both eyes, redness, swelling of the eyelids, and watery, yellow, or green discharge.
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- Conjunctivitis. Conjunctivitis is an inflammation or infection of the conjunctiva, the thin transparent layer of tissue that lines the inner surface of the eyelid and covers the white part of the eye. Conjunctivitis, often called “pink eye,” is a common eye disease, especially in children.It may affect one or both eyes.onjunctivitis may be caused by a viral or bacterial infection. It can also occur due to an allergic reaction to irritants in the air like pollen and smoke, chlorine in swimming pools, and ingredients in cosmetics or other products that come in contact with the eyes.
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Conjunctivitis Conjunctivitis when caused by an infection is most commonly caused by a viral infection. Bacterial infections, allergies, other irritants and dryness are also common causes. Both bacterial and viral infections are contagious and passed from person to person, but can also spread through contaminated objects or water.onjunctivitis can affect one or both eyes and is the most likely diagnosis in someone with eye redness and discharge (fluid coming from the eye). The affected eye is often stuck shut in the morning. Bacterial and viral conjunctivitis are highly contagious, and are transmitted through contact with the discharge.
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- Conjunctivitis, commonly known as pink eye, is an inflammation of the membrane (conjunctiva) that covers the eye and lines the inner surface of the eyelid. There are four main causes of conjunctivitis.
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Conjunctivitis: Bacterial, Viral, Allergic And Other Types Bacterial conjunctivitis is a common type of pink eye, caused by bacteria that infect the eye through various sources of contamination. The bacteria can be spread through contact with an infected individual, exposure to contaminated surfaces or through other means such as sinus or ear infections.
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- Most cases of pinkeye are caused by: 1  Infections caused by viruses or bacteria. 2  Dry eyes from lack of tears or exposure to wind and sun.  Chemicals, fumes, or smoke (chemical conjunctivitis).
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Pink Eye: A Complete Guide to Conjunctivitis Pink eye, or conjunctivitis, is a common eye problem caused by an infection or inflammation of the conjunctiva, the outermost layer of the eyeball which causes the pinkish hue. Pink eye can be caused by bacterial infections, viruses, eye allergies, or contact-lens related problems. There may be discharge present
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Conjunctivitis: Bacterial, Viral, Allergic And Other Types All forms of conjunctivitis  including bacterial, viral, allergic and other types  involve inflammation of the transparent, mucous membrane (conjunctiva) covering the white part of the eye or sclera. Infectious causes of an inflamed eye and conjunctivitis include bacteria, viruses and fungi.Non-infectious causes include allergies, foreign bodies and chemicals.nfectious causes of an inflamed eye and conjunctivitis include bacteria, viruses and fungi. Non-infectious causes include allergies, foreign bodies and chemicals.
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For Clinicians Viral conjunctivitis can be caused by the following viruses, with adenoviruses being one of the most common causes: 1  Adenoviruses. 2  Rubella virus. 3  Rubeola (measles) virus.  Herpesviruses, including Herpes simplex virus. Varicella-zoster virus, which also causes chickenpox and shingles.
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Conjunctivitis: What Is Pink Eye? Conjunctivitis is most commonly caused by the same virus that causes the runny nose and sore throat of the common cold. Bacterial infections cause conjunctivitis that produces lots of sticky pus in the eye. Some bacterial infections, however, may cause little or no discharge. Sometimes the bacteria that cause pink eye are the same that cause strep throat. Both bacterial and viral conjunctivitis are easily spread from person to person. Sometimes having an allergic reaction to pollen or animals can cause conjunctivitis.
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Conjunctivitis Conjunctivitis (kon-jung-tih-VY-tis), often called pinkeye, is an inflammation of the conjunctiva (kon-jung-TIE-vuh), the thin membrane that lines the inside of the eyelids and covers the surface of the eyeball. Conjunctivitis can be caused by viruses, bacteria, allergies, or chemical irritation.
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Conjunctivitis Conjuctivitis is an inflammation resulting in redness of the lining of the white part of the eye and the underside of the eyelid (conjunctiva) that can be caused by infection, allergic reaction, or physical agents like infrared or ultraviolet light.onjunctivitis is the inflammation of the conjunctiva, a thin, delicate membrane that covers the eyeball and lines the eyelid. It may be caused by a viral infection, such as a cold or acute respiratory infection, or by such diseases as measles, herpes simplex, or herpes zoster.
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- Background. Inflammation of the bulbar and/or palpebral conjunctiva, or conjunctivitis, can be caused by allergies, viruses, or bacteria. Bacterial conjunctivitis is commonly caused by staphylococci, streptococci, chlamydial organism, and gonococci.ackground. Inflammation of the bulbar and/or palpebral conjunctiva, or conjunctivitis, can be caused by allergies, viruses, or bacteria. Bacterial conjunctivitis is commonly caused by staphylococci, streptococci, chlamydial organism, and gonococci.
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- Conjunctivitis is often called pink eye or red eye because it can cause the white of the eye to take on a pink or red color. The most common causes of conjunctivitis are viruses, bacteria, and allergens.iral Conjunctivitis. Viral conjunctivitis is caused by infection of the eye with a virus. Viral conjunctivitis. 1  Can be caused by a number of different viruses, many of which may be associated with an upper respiratory tract infection, cold, or sore throat.
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- Bacterial Conjunctivitis. Bacterial conjunctivitis is caused by infection of the eye with certain bacteria. Bacterial conjunctivitis. 1  Usually begins in one eye and may sometimes progress to the second eye. 2  Is a leading cause of children being absent from day care or school (Patel, 2007).onjunctivitis is often called pink eye or red eye because it can cause the white of the eye to take on a pink or red color. The most common causes of conjunctivitis are viruses, bacteria, and allergens.
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- Pink eye, more formally known as conjunctivitis, is an uncomfortable eye illness caused by allergies or infections. Your body may heal by itself, but there are a few measures you can take to speed the process, depending on the form of pink eye you have.
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- 1 Conjunctivitis is caused by an infection of the lining of the eyelids and of the outer protective layer of the eye (the conjunctiva). There is likely to be a gritty feeling and pus. 2  Conjunctivitis from a virus may involve one or both eyes, causing red itchy eyes and watering of the eyes. 3  There may also be pus and a gritty feeling.
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Conjunctivitis Causes. Conjunctivitis, when caused by an infection, is most commonly caused by a viral infection. Bacterial infections, allergies, other irritants, and dryness are also common causes. Both bacterial and viral infections are contagious and passed from person to person, but can also spread through contaminated objects or water. Viral