Study: NCT04678167

Intervention type: DIAGNOSTIC_TEST
Group type: PLACEBO_COMPARATOR
Intervention: Measurement of the speed of Nystagmus
Description: A helmet with an infrared camera will be placed in front of patient eyes. This will allow visualizing on screen and measuring eye movements spontaneous or induced in the dark by various tests.

Intervention type: DIAGNOSTIC_TEST
Group type: EXPERIMENTAL
Intervention: Angle of deviation at Fukuda
Description: The patient will be asked to trample on the spot (30 steps) with the indexes pointed forward. In the event of vestibular asymmetry, the patient turns at a varying angle to the right or to the left. This will then measure what is called the angle of deflection of the fukuda.

Intervention type: DIAGNOSTIC_TEST
Group type: OTHER
Intervention: Angle of deviation at Fukuda
Description: The patient will be asked to trample on the spot (30 steps) with the indexes pointed forward. In the event of vestibular asymmetry, the patient turns at a varying angle to the right or to the left. This will then measure what is called the angle of deflection of the fukuda.

Intervention type: DIAGNOSTIC_TEST
Group type: PLACEBO_COMPARATOR
Intervention: Angle of deviation at Fukuda
Description: The patient will be asked to trample on the spot (30 steps) with the indexes pointed forward. In the event of vestibular asymmetry, the patient turns at a varying angle to the right or to the left. This will then measure what is called the angle of deflection of the fukuda.

Intervention type: DIAGNOSTIC_TEST
Group type: EXPERIMENTAL
Intervention: Alexander's degree of nystagmus
Description: there are 3 degrees:~* Degree I: nystagmus that exists only when the eyes are turned to the right.~* Degree II: also exists when the eyes are to the right or to the front.~* Degree Ill: exists when the eyes are on the right, front, or left

Intervention type: DIAGNOSTIC_TEST
Group type: OTHER
Intervention: Alexander's degree of nystagmus
Description: there are 3 degrees:~* Degree I: nystagmus that exists only when the eyes are turned to the right.~* Degree II: also exists when the eyes are to the right or to the front.~* Degree Ill: exists when the eyes are on the right, front, or left

Intervention type: DIAGNOSTIC_TEST
Group type: PLACEBO_COMPARATOR
Intervention: Alexander's degree of nystagmus
Description: there are 3 degrees:~* Degree I: nystagmus that exists only when the eyes are turned to the right.~* Degree II: also exists when the eyes are to the right or to the front.~* Degree Ill: exists when the eyes are on the right, front, or left

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: EHTEV questionnaire
Description: Handicap Scale for Balance Disorders and Vertigo

Intervention type: OTHER
Group type: OTHER
Intervention: EHTEV questionnaire
Description: Handicap Scale for Balance Disorders and Vertigo

Intervention type: OTHER
Group type: PLACEBO_COMPARATOR
Intervention: EHTEV questionnaire
Description: Handicap Scale for Balance Disorders and Vertigo

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: EEV questionnaire
Description: European Vertigo Assessment Questionnaire

Intervention type: OTHER
Group type: OTHER
Intervention: EEV questionnaire
Description: European Vertigo Assessment Questionnaire

Intervention type: OTHER
Group type: PLACEBO_COMPARATOR
Intervention: EEV questionnaire
Description: European Vertigo Assessment Questionnaire

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: anxiety VAS
Description: visual analog scale of anxiety

Intervention type: OTHER
Group type: OTHER
Intervention: anxiety VAS
Description: visual analog scale of anxiety

Intervention type: OTHER
Group type: PLACEBO_COMPARATOR
Intervention: anxiety VAS
Description: visual analog scale of anxiety