Thursday, 4 January 2018

Know About Conjunctivitis, Symptoms, Types And Effects

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Conjunctivitis, or "pink eye" happens when the conjunctiva of the eye becomes inflamed. The eye can become red or pink, swollen, and irritated, and there may be mucus. Infective conjunctivitis can be highly contagious. "Pink eye" is a term that may sound scary, but this common eye problem typically is easily treated and, with a few simple precautions, can often be avoided.

Anyone can get pink eye, but preschoolers, schoolchildren, college students, teachers and daycare workers are particularly at risk for the contagious types of pink eye because they work closely with others in the classroom.
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Symptoms
The symptoms of conjunctivitis will depend on what's causing the condition, the symptoms usually include :

  • Eye Redness : as a result of the inflammation and widening of the tiny blood vessels in the conjunctiva (the thin layer of cells covering the front of the eyes)
  • Discharge : the conjunctiva contains thousands of cells that produce mucus and tiny glands that produce tears –inflammation causes the glands to become overactive, so that they produce more water and mucus

Infective Conjunctivitis
. Shows symptoms of a cold, flu, or other respiratory infection
. Discharge from the eye is usually watery rather than thick
. Sometimes occurs with an ear infection
. Burning sensation in your eyes
. Feeling of grit in your eyes
. Asticky coating on the eyelashes, usually when you first wake up in the morning

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Allergic Conjunctivitis
. Usually occurs in both eyes, canproduce intense itching, tearing, and swelling in the eyes
. Shows symptoms of allergy, such as an itchy nose, sneezing and scratchy throat

Types
The types of conjunctivitis are based on its causes, they are -

  • Viral conjunctivitis : Caused by a virus, like the common cold. This type of pink eye is very contagious, but usually will clear up on its own within several days without medical treatment.
  • Bacterial conjunctivitis : 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).

Although the conjunctiva is transparent, it contains blood vessels that overlay the sclera of the eye. Anything that triggers inflammation will cause these conjunctival blood vessels to dilate. Inflammation causes tiny blood vessels, or capillaries, in the conjunctiva to become more prominent.


This causes discomfort and a pink or red appearance that can last from a few days to several weeks.



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Author: Richard Smith