Eog

\*EEG (Electroencephalography) and EOS (Encephalo-oculogram) - recordings of the electrical activity of the brain and eyes, respectively: EEOG (Electro-electro-oculography): measurement of the electrical activity of the eyes EERG (Electroretinography - study of the electrical activity of the retina, its variety electrophysiological ophthalmology. ERG allows you to get an idea of functions of the fundus and electrophysiological properties of ocular tissues. Electroretinogram - ERG recording)

*Study of the function of the visual cortex using rhythmic photostimulation (Retinography)*

- VRS or VV (visual perception). Using an ophthalmoscope, the patient is asked to assess the presence of a light stimulus on the PS carrier. The device registers light stimulation. 1/4 pulse: indicates the photosensitive ability of the ocular tissue. Therefore, this parameter is compared with the field of view indicators.

During an ultrasound examination of an ophthalmological patient, a person looks at the light of a flashlight, which is located at a certain distance from him. The nurse suggests covering the left eye with the palm of the right hand. You need to look towards your right ear. With his right hand, the doctor gradually lowers the palm of his left hand. The palm should gradually close. Next, the subject must pronounce the number shown by the counter. This number is the test results. The doctor asks you to close the affected eye for half a minute to check its sensitivity at rest. The patient closes the second eye according to the doctor’s command, which is issued after the examination of the left eye is completed.

EEG (electroencephalography) EEG (encephalogram) is a method of studying the functioning of the human brain by recording electrical signals that arise in the cortex when impulses caused by electrical impulses from the senses pass along the nerve pathways. The essence of the method is that weak currents are induced between the scalp and electrodes installed on the surface of the head. By registering these currents with highly sensitive electrodes, information about brain activity is obtained. In this case, the main parameters of the EEG are determined: amplitude, frequency of electrical oscillations, power, index and depth of bioelectrical activity.