CONJUNCTIVITIS
Pink eye, or conjunctivitis, is an infection of the inner surface of the eyelid and the outermost layer of the white portion of the eye.[5] It gives the appearance of a pink or reddish eye.It is possible to experience pain, burning, itching, or scratchiness.[1] The afflicted eye can be "stuck shut" in the morning or have more tears in it.[1] The white portion of the eye may also swell.[1] Itching is more prevalent when allergies are to blame.[3] One or both eyes may be affected by conjunctivitis.[1]
Viral and bacterial infections are the most frequent infectious causes.[3] In addition to conventional cold symptoms, the viral infection may also manifest itself.Cases of germs and viruses can travel quickly between individuals.[1] Pollen or animal hair allergies are also often occurring
Symptoms and indicators
All types of conjunctivitis cause similar symptoms, such as watering of the eyes, red eyes, and swelling of the conjunctiva. The visual acuity should be normal, and the pupils should respond normally.[6]
The conjunctiva becomes inflamed and becomes red, which is how conjunctivitis is recognized. Using a biomicroscope or slit light for examination might increase the precision of the diagnosis. Examining the palpebral conjunctiva, which covers the inside of the eyelids, is typically more informative in terms of diagnosis than examining the bulbal conjunctiva, which covers the sclera.[Reference required]
Intolerance
Conjunctival irritation brought on by an allergy is known as allergic conjunctivitis.[8] Patients may not all react to the same allergies. Histamine and other active compounds are released by mast cells, causing symptoms such as redness (mostly from dilatation of the peripheral small blood vessels), swelling of the conjunctiva, itching, and increased tear production.
micro organisms
The quick start of sticky discharge, eyelid swelling, and conjunctives redness are signs of bacterial conjunctivitis. Usually, one eye has symptoms initially, but they can quickly spread to the other in a matter of days. Common pus producing bacteria induced conjunctivitis results in a stringy, opaque, greyish or yellowish discharge that can cause the lids to cling together, especially after sleeping. It also produces noticeable grittiness or discomfort. There may also be severe crusting of the skin around the affected eye. Sometimes the scratchy or gritty sensation is so confined that patients may claim that something alien is in their eye.[Reference required]
Nonacute bacterial conjunctivitis is commonly caused by Staphylococcus, Streptococcus, and Haemophilus species. Less frequently, Chlamydia species might be the reason. [10]
Normal bacteria causing membrane like conjunctivitis
Chemical
When an acidic or alkaline material gets in the eye, it can cause chemical eye damage.Acidic burns usually heal more quickly than alkali burns [12].[13] Severe burns can result in conjunctivitis or even cause the cornea to become white. [13] To check for chemical reasons, use litmus paper.[12] Following the confirmation of a chemical etiology, the eye or eyes should be flushed until the pH falls between 6 and 8.[13] To lessen the discomfort, apply anesthetic eye drops.[ 13]
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