Any disease process which interferes with the conduction of sound to reach cochlea causes conductive hearing loss. The lesion may lie in the external ear and tympanic membrane, middle ear or ossicles up to stapediovestibular joint.
It is an acute inflammation of middle ear by pyogenic organisms. Here, middle ear implies middle ear cleft, i.e. eustachian tube, middle ear, attic, aditus, antrum and mastoid air cells.
Tinnitus is ringing sound or noise in the ear. The characteristic feature is that the origin of this sound is within the patient. Usually, it is unilateral but may also affect both ears. It may vary in pitch and loudness and has been variously described by the patient as roaring, hissing, swishing, rustling or clicking type of noise. Tinnitus is more annoying in quiet surroundings, particularly at night, when the masking effect of ambient noise from the environment is lost.
Pain in the ear can be due to problems occurring locally in the ear or referred to it from remote areas.
As our ears are prove to dust, sunlight, cold winds, pollutants etc. it is not surprising that many a complications occured in or outside the ear. Some common ailments related to ear are given here under.
VISUAL FIELD TEST
Visual field testing (perimetry) is used to check the whole area that each eye can see (the visual field). The development of blank sections in the visual field may be casued by various underlying disorders. Many eye disorders cause characteristic visual field defects that can develop without being noticed. Testing allows early detection and treatment.
The cornea is the clear tissue covering the front of the eye. It is a focusing element of the eye. Vision will be dramatically reduced or lost if the cornea becomes cloudy from disease, injury of infection.