Otoliths are small granules of solid material that are responsible for sensing acceleration and gravity in all organisms. They are usually composed of calcium carbonate or starch. In mammals, including humans, calcite granules are located in the inner ear and regulate balance. What are otoliths? Otoliths are responsible for the sense of balance in mammals. … Otoliths: Structure, Function & Diseases
Introduction A nystagmus in general is a jerky eye movement, which is performed in very short intervals from left to right or from right to left. On the one hand, a nystagmus has a biological function, but under certain circumstances it can also be a sign of illness. Nature has created the nystagmus in order … Nystagmus
Diagnosis There are several tests for testing the nystagmus, which are usually performed by an ENT physician. First, the patient is placed on a swivel chair, which is then accelerated. This results in a slowly beating eye nystagmus, first against the direction of rotation, followed by a rapid return movement in the direction of rotation. … Diagnosis | Nystagmus
Therapy First of all, the cause of a nystagmus should be determined. In benign positioning vertigo, which is caused by hardening of the otoliths, falling and throwing exercises are very helpful and often lead to an improvement in symptoms after only a few applications. If the cause of a nystagmus is unclear, an MRI or … Therapy | Nystagmus
Direction of the nystagmus When fixing a point while driving, the eye moves slowly in vertical direction against the driving direction. The movement is very slow. This eye movement is followed by a fast reset nystagmus in the direction of travel. The same sequence of movements is triggered during the swivel chair test. At first, … Direction of the nystagmus | Nystagmus
Acoustic trauma or sonic trauma is damage to the hearing organ caused by exposure to extreme noise and pressure on the ear. It can cause permanent injury and permanently reduce hearing ability. What is acoustic trauma? Acoustic trauma, or acoustic trauma, is damage to the hearing organ caused by exposure to extreme noise and pressure … Acoustic Trauma (Blast Trauma): Causes, Symptoms & Treatment
Sandhoff disease represents a lysosomal storage disorder in which there is storage of GM2 gangliosides in neurons. In this case, the enzyme activity of hexosaminidase A and B is impaired. The prognosis is usually very poor. What is Sandhoff disease? Sandhoff disease is one of the lysosomal storage diseases. The disease was first described in … Sandhoffs Disease: Causes, Symptoms & Treatment
Leber’s congenital amaurosis is a hereditary disorder of the function of the retina of the eye. Primarily, a specific pigment epithelium located on the retina is affected by the impairment. The term of the disease is derived from the Greek word ‘amauros’, which means blind or dark. Leber’s congenital amaurosis is congenital and also includes … Leber Congenital Amaurosis: Causes, Symptoms & Treatment
By electrooculography, ophthalmologists mean a measurement procedure to determine the retinal resting potential, which is often used to diagnose diseases of the vestibular organ. The procedure works with the help of two electrodes and is entirely objective. There are no risks or side effects associated with the measurement. What is electrooculography? If the ophthalmologist diagnoses … Electrooculography: Treatment, Effects & Risks
