[1] The use of both electrophysiological information in conjunction with other clinical tests, imaging, and field instrumentation, a deep and comprehensive assessment of the ocular and visual pathways can be made.
Transcutaneous electrical nerve stimulation (TENS) is an umbrella term used to characterize all forms of electroanalgesia utilizing surface electrodes applied to the skin.
[citation needed] Peak amplitudes are typically below 1 mA and do not produce phase charges strong enough to excite peripheral nerve fibers and reach the sensory threshold.
While some researches claim that the microcurrent has an effect on the cellular activity, there is insufficient evidence to support the use of MENS in electroanalgesia.
[citation needed] Amplitude is adjusted to achieve superficial cutaneous nerve fiber activation.
[citation needed] Sensory-level stimulation is the most researched level of electroanalgesia and is usually perceived by the patient as very comfortable.