EVERYDAY SCIENCE

Detailed explanation-1: -The conjunctiva is a clear layer of tissue lining the eyelids and covering the white of the eye. Allergic conjunctivitis occurs when the conjunctiva becomes swollen or inflamed due to a reaction to pollen, dust mites, pet dander, mold, or other allergy-causing substances.

Detailed explanation-2: -Detailed Solution. Conjunctivitis, also known as pink eye. In this inflammation occurs in the outermost layer of the white part of the eye and in the inner surface of the eyelid.

Detailed explanation-3: -When sand and dust get into your eyes, you should flush it out right away. The debris can leave behind a feeling of itchiness and blurred vision. These symptoms may indicate a corneal abrasion.

Detailed explanation-4: -If an object gets into your eye it can damage the surface of the cornea. This is known as “corneal abrasion” or “corneal erosion.” It’s not always visible.

Detailed explanation-5: -You may have itchy eyes if you have allergic conjunctivitis. You may also develop swelling (oedema) of the conjunctiva, known as chemosis. Chemosis is a general sign of eye irritation. The outer surface covering appears to have fluid in it.