Do you feel something vibrating when you hear a shrill sound or do your ear drums hum after a drum roll? You need Otoscopy.
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Otoscopy is the procedure of examination of the ear with an instrument called otoscope or auriscope. This examination is performed to check the dark tunnel ? medically, the external auditory canal, that leads from outer ear to the eardrum.
The otoscopy can also help with the inspection of the middle ear ? the space within the skull where the hearing and balance mechanisms are situated.
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The instrument called otoscope has a the handle, which contains the power for the light source, its head contains the light bulb and magnifying lens and the cone, which is inserted into the ear canal.
Otoscopy may be done when there is a complaint of ear pain. The first check up is done of the outer ear where symptoms of disease like redness and swelling are checked.
After the inspection of the outer ear, the ?tunnel? or external auditory canal is examined. The eardrum is located in the canal and the natural curve of the canal has a resonance frequency of approx. 3400 Hz, which is an important frequency region for understanding speech.
Abnormal findings from an otoscopy may include a dry, flaky lining implying eczema with symptoms of itching. It may also be an inflamed and swollen, narrowed canal, possibly with pus indicating infection (otitis externa). The usual symptoms include itch, discomfort, pus and often an pungent smell from the ear. Generally, it may be wax obscuring the eardrum or something in the ear, such as the rubber from the end of a pencil. Other abnormal findings seen with the otoscope include a hole (perforation) in the eardrum or an acute infection of the middle ear (acute otitis media), in which the eardrum will burst, allowing the pressure (and the pain) to reduce.
Then one can often see the tear in the drum which can be healed.
The eardrum is pinkish-grey in colour and circular in shape. The otoscopes have a small air vent connection through which air can be blown in the ear canal and the doctor can assess the air pressure at which the eardrum moves, which varies depending on the pressure within the middle ear. This technique is called insufflation.
Air gets to the middle ear through a short tube, called the Eustachian tube and blockage of the Eustachian tube is a common finding in conditions such as a cold, hay fever or, in children ?glue ear?.
A doctor can get some idea of whether the Eustachian tube is blocked by asking one to gently blow out while pinching your nose and closing your lips. This is called Valsalva?s maneuver, and the normal finding is that the eardrum moves slightly during it. When the Eustachian tube is blocked, the eardrum remains still. One can try this at home or look for suggestions on the online medical videos.
The new technology helps in the field of Otoscopy with Video Otoscopy (VO). It continues to gain acceptance as an integral component of hearing health care practice today. The technologically advanced video-optical technique has applications in the examination, display and documentation of the external ear canal and tympanic membrane. VO is a simple, compact unit incorporating a rod otoscope with a fiber-optic illumination, and a high-resolution color video camera capable of recording a patient?s ear canal.
Otoscopy is a sure way of h?ear?ing it right!
Source: http://www.1directory.net/health-fitness/otoscopy-the-hearing-problem-2239.html
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