Explain why infectious otitis media (inflammation of the middle ear) may result

Question

Explain why infectious otitis media (inflammation of the middle ear) may result in a simultaneous pharyngitis (inflamation of the throat).

LASIK, or laser-assistated in situ keratomileusis, is a surgical procedure on the ey that millions of people have undergone to improve visual acuity. It involves the use of a laser is to reshape the corner in individuals suffering from astigmatism, near-sightedness (myopia), or far sightedness (hyperopia). How could changing the shape of the cornea affect one's visual acuity?

Explanation / Answer

The eustachian tube is the passage between the ear and the throat (pharynx). It opens in the middle ear cavity. Due to this direct connection a pharyngitis may follow an otitis media.

2.The ability of the eye to focus clearly on objects near and far involves several structures in the eye, but it all begins with the shape of the eye and the role of the cornea

Myopia, also known as nearsightedness, is a condition in which a person can see near objects more clearly than distant objects.

Myopia is usually the result of a larger than normal eye.

Hyperopia, also known as farsightedness, is a condition in which a person can see distant objects more clearly than near objects.

Hyperopia usually occurs when an eyeball is smaller than normal,

Astigmatism often occurs in combination with myopia and hyperopia. The cornea and lens of the eye are generally spherical. When one or both are curved more steeply in one meridian (football shaped instead of basketball shaped), the person has astigmatism.

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