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Frequently asked questions that other professionals have asked about LENS Neurofeedback

LENS Neurofeedback

If you would like to know more, please contact us

About the LENS

What is LENS?

LENS, or Low Energy Neurofeedback System, is neurofeedback, a specific neurotherapy method.


The aim of the LENS is to modulate the frequencies of the brain’s electrical activity and to interrupt its dysfunctional patterns


As a result, your patients obtain a significant improvement in their ability to self-regulate. This enables an easier and faster integration of the therapeutic process.

What are the applications of LENS?

LENS Neurofeedback addresses the functional blocking of the Central Nervous System that underlies a variety of diagnoses:


  • mood, emotional lability
  • attention, sequencing, concentration, memory
  • anger, sadness, explosiveness
  • motor coordination
  • motivation to begin and/or complete tasks
  • agitation, rumination, respiratory distress, palpitations
  • sleep interruption
  • hyper-reactivity, hypersensitivity
  • social interaction
  • attachment and trauma
Is it medical equipment?

LENS Neurofeedback is a biofeedback tool.


This means that it does not have a declared, specific purpose of serving for diagnosis, treatment or relief of any medical or psychological condition .


LENS Neurofeedback strengthens your patients’ capacity to self-regulate and this can mean a change in the way they react to the symptoms of the illness.


LENS Neurofeedback is not intended to be a replacement or substitute for any form of conventional medical treatment.

Who can benefit from the LENS method?

LENS Neurofeedback is suitable for all types of patients, regardless of their age (from 6 months) and their ailment. Your skill and expertise as a LENS professional will determine whether it is suitable for use in complex cases.

What is a LENS session like?

A LENS Neurofeedback session, within a therapeutic process, normally occurs as follows:


  1. First the LENS professional assesses the progress of their patient since the last session
  2. Then the professional selects the application and the number of sites on the scalp where the LENS feedback is going to be sent, depending on the patient’s characteristics and progress
  3. The time during which the patient is receiving feedback is normally just a few seconds for each position. The patient does not have to “do” anything specific
  4. Once finished, the professional dedicates some time to offering patients a context to enable them to understand the changes and the implications of these, usually resuming their usual therapeutic work afterwards
What does the patient notice after receiving LENS sessions?

The effects of the LENS on your patient are quite specific to each person.

LENS feedback is totally painless and imperceptible.


Immediately after the feedback, your patient tends to feel more relaxed and sleepy.

From that moment on, your patient’s nervous system will start reorganizing itself, seeking a new balance.



Over the next 24/48 hours patients tend to notice internal changes depending on the problem that brought them to your practice: more mental clarity, more relaxation, deeper and more restful sleep, more emotional stability, more energy and zest.



Thus, the LENS will act as an excellent ally of your therapeutic goals. In 75% of patients, the changes will begin to be apparent before the third session.

How long does a LENS session last?

The time that the therapist uses LENS with each patient varies from just a few seconds to some minutes, basically depending on the sensitivity and reactivity of each individual.


This is why LENS Neurofeedback combines so easily with any other therapeutic technique

How many LENS sessions are needed?

The number of sessions that each patient needs depends on two variables: the type of problem being treated, and the patient’s characteristics (sensitivity, reactivity, resilience).


As a general rule, patients with a functional past, with non-congenital and sudden onset problems, require few sessions (between 6 and 10).

By contrast, some patients with low sensitivity to feedback and with a long history of multiple problems could need up to 40 sessions.

In just a few circumstances such as spinal cord injuries, very serious head trauma and physiological impairments of genetic origin, the number of sessions can easily amount to hundreds in order to maintain a constant improvement in functions.

How frequent are LENS sessions?

LENS Neurofeedback sessions are usually given weekly or fortnightly.


Therapists can administer LENS as frequently as they apply their therapeutic techniques.

What side effects have been observed?

LENS Neurofeedback can evoke some past symptoms in the patient that have not been fully overcome.


The LENS professional knows how to graduate the intensity of LENS feedback to facilitate the integration of said symptoms, avoiding unnecessary discomfort for patients.

Are there any contraindications?

LENS Neurofeedback is 100% safe. In over 25 years, LENS has not hurt or injured any patients.



However, LENS can evoke the reappearance of past symptoms in the patient which have not been fully resolved, to later integrate and overcome them.




As a legal precaution more than a medical one, we advise not treating pregnant women. Likewise, given that LENS appears to cause a momentary vasodilatation, it is not advised for patients with very low blood pressure.

Are the effects of LENS lasting?

The changes are lasting and stable once the process has ended.

A small percentage of patients needs periodic reminder sessions.

What professionals can administer LENS?

LENS Neurofeedback is exclusively used by health professionals in a therapeutic setting.



Each country regulates in its own way which the different health professions are.



LENS professionals must hold a health professional license that is valid in their region.

Can LENS be combined with other techniquess?

LENS Neurofeedback is the ideal ally for combining with any therapeutic techniques that you use, because it takes up very little time in the session and because it facilitates and enhances the results of any therapy, such as neurofeedback, electrical stimulation of the brain, behavioral therapy, EMDR, neurorehabilitation and physical therapy, etc.

How does LENS differ from traditional neurofeedback?

Traditional neurofeedback requires conscious awareness of the stimuli in sessions lasting between 45 and 60 minutes. Results are normally achieved over 40 or more sessions.


LENS does not require any sustained care, and the patient does not need to do anything specific during the session.

The session lasts between a few seconds and a few minutes, and the changes are often apparent from the first session.


This means that LENS Neurofeedback is an excellent option for all patients, including people who can’t sit still for long periods of time and/or cannot understand the instructions.


How does LENS differ from pEMF - Pulsed Electro Magnetic Field?

Unlike pEMF systems, LENS feedback is not in the form of pulses, but travels in a continuous carrier wave. The intensity and duration of the wave is so small that many consider it non-existent. By contrast, the intensities and durations of pEMF sessions are much greater.


LENS Neurofeedback in addition is a resonant system, as it makes the feedback match your patients’ physiology. None of the pEMF devices do it in the same way as LENS. The power of LENS is based on this resonance and its unique brain mapping system.

Where can I find a LENS professional?

In the Directory section of the upper menu, there is a directory of professionals who have already incorporated LENS into their practices. This list is constantly growing, as more and more professionals incorporate it.


If you do not find what you are looking for, please write to us and we will try to put you in touch with the LENS professional closest to you.

About the acquisition

What components make up the LENS?

The fundamental part of the LENS Neurofeedback system is an advanced software – LENSWare3 – for monitoring and processing the electric brain waves. To this end, an EEG amplifier – A200 –, a personal computer and a set of electrodes are necessary.

What do I need to have a LENS?

You need to meet the following 3 requirements:

What credentials do I have to meet?

LENS Neurofeedback is exclusively used by health professionals in a therapeutic setting. These are normally psychologists, psychiatrists, psychotherapists, pediatricians, social workers, etc.


Each country regulates the various health professions in its own way. LENS professionals must hold a health professional license that is valid in their region.

What training do I have to do?

The basic training to incorporate the LENS Neurofeedback into your practice consists of a three-day training course, the LENS Foundations Training. This course enables you to begin to use LENS with your patients from the very first day.

Do I need to have previous training in neurofeedback?

You do not need to have prior knowledge about qEEG, EEG, neurofeedback or neurophysiology to incorporate LENS into your practice. Everything you need to know to handle the LENS you will learn during LENS Foundations Training.

Is there any additional Training Level?

OchsLabs Europe teaches two additional levels:

LENS Intermediate Training and LENS Advanced Training, which will increase your knowledge and skills in handling LENS Neurofeedback with your patients.

How much does LENS cost?

LENS Neurofeedback system price includes everything you need to start using it with your patients from the first day:

computer, software, EEG amplifier, electrodes and all other components:



  • LENSware3 Professional One Channel Software
  • Report Generator Software



  • A200 EEG Amplifier 
  • LENS Professional Computer (pre-loaded with purchased software)
  • USB Cable
  • Set of 3 Electrodes
  • DIN EEG Jumper Adapter
  • Nuprep gel
  • Conductive 10/20 paste
  • Carrying case


Additional items included:

  • Foundations Training Course
  • 32 Days Free Tech Support
  • 3 Year EEG Box Warranty
  • 6 Month Affiliate Membership
  • LENS Discussion Group Admission
  • On-line Account Access: Software, Software Updates, specific Videos, specific Interviews, all documents on the CDB, listing as a LENS Clinical Practitioner on our website.
  • LENSware3 Instruction Manual I (Introductory)


Contact us to know more details.

What other software options are there?

You can enhance your results with LENS Neurofeedback with the following software units:


Gain more flexibility to apply LENS Neurofeedback to your patients. From softer applications to complete maps in a single session and less time.

Set of electrodes included.


An intuitive and easy to implement tool developed by Dr.Len Ochs Ph.D to guide the LENS Neurofeedback treatment with the greatest effectiveness.


Apply LENS on the patient’s body more easily thanks to this specific software.

Set of electrodes included.

How do I buy it?

The LENS Neurofeedback system is only sold to licensed health professionals, after having completed the basic training course, LENS Foundations Training.


Get in touch with us to verify your credentials and organize your training.



You can acquire the equipment (computer, EEG amplifier and other components) and collect it at your training course. Alternatively, you can first complete your training and later decide to acquire the components of the system, which would be delivered to you by post.

LENS at your practice

LENS Neurofeedback helps your patients to better manage the symptoms of their ailments. A list of diagnoses is given below and an explanation of how LENS works on the underlying functions that are blocked

High performance

The effects of LENS Neurofeedback on the Central Nervous System are wide-ranging. Many patients of LENS professionals see improvements in their cognitive functions such as their capacity to concentratesustained attentionmental clarity, ability to learn, memoryreadingcomprehensionorganizational and planning ability, taking action, ability to change, etc.


LENS Neurofeedback enhances your patient’s ability to self-regulate. It has been observed that after the initial sessions of LENS (from zero to five), symptoms of anxiety start to decrease dramatically.


Many therapists around the world use LENS Neurofeedback as an adjuvant therapy in their therapeutic arsenal for autism spectrum disorders: diet, detoxification, supplementation, hyperbaric chamber, speech therapy, hippotherapy, Tomatis, and sensory therapy, etc. Many testimonials speak about how LENS is a facilitator of all these tools.

Brain damage

Following a stroke or head trauma, causing brain damage, brain functions are seriously affected. When patients receive LENS, the reactivity of the brain decreases and this fact makes possible the brain’s own ability to recover (neuroplasticity), appearing in the form of a reduction in the after-effects: improvement of cognitive function, better emotional control, reduced spasticity in limbs, etc.


LENS Neurofeedback enhances your patients’ ability to self-regulate through the elimination of old maladaptive or dysfunctional patterns. Patients with short-term depression, a recent bereavement or mild post-traumatic stress require few sessions to gain a new balance and see improvements in the symptoms that accompany their condition. For more complex patients, you will need to apply good therapeutic work, enhanced with more LENS sessions.

Pain, Migraine

LENS Neurofeedback changes the way in which the Central Nervous System reacts to pain and illness. Many patients have felt great improvements in just one single LENS session.


Both paradigms, LENS and EMDR, share a neurobiological basis and are based on the idea of the human being’s intrinsic ability to recover and on there being no need for direct intervention by the therapist.



The interactions of the LENS in an EMDR process are many

– generating confidence in abilities to self-regulate

– facilitating the deployment of resources

– encouraging the integration of the material processed during the session

– reducing the time devoted to working on defenses



In general, all EMDR processes are faster and easier thanks to the LENS.

Neurodegenerative diseases

LENS Neurofeedback seems to be able to slow down the progression of neurodegenerative diseases such as Alzheimer’s disease, Parkinson’s disease and multiple sclerosis. LENS temporarily improves the patient’s quality of life. Due to the chronic and degenerative nature of the illness, it is necessary to maintain continuity in the treatment to sustain improvements. However, after 3 to 5 years, the illness tends to run its course.


From the LENS Neurofeedback paradigm, epilepsy is considered to be a reactive activity or  response of the brain. LENS reduces the reactivity of the Nervous System because it raises the reactivity threshold. This helps a reduction in the intensity and frequency of epileptic seizures.


Anger, irritability and borderline behavior tend to decrease as LENS encourages a rebalancing of the Central Nervous System and increases the reactivity threshold. Many patients experience changes from the very first session of LENS.

Chronic fatigue

Pain and fatigue are managed from the Central Nervous System. LENS Neurofeedback encourages a new balance and enables the brain to manage the input reaching it from the periphery system differently.


Insomnia is a condition that is very sensitive to a number of physical and psychological factors. Given that LENS Neurofeedback affects the way in which the brain reacts to these factors, it is very common for patients with problems of insomnia to notice improvements in their sleep patterns from the first sessions with LENS


LENS is compatible with all therapeutic techniques because it enhances their effects, facilitates the process and takes up very little time in the session. Traditional neurofeedback is an example of this: LENS is an excellent catalyst. In addition, they share a lot as LENS is a neurofeedback system and uses very similar components. Many neurofeedback therapists use LENS before beginning each neurofeedback session with their patients.

Children and adolescents

LENS is safe in all types of patients, from the elderly and adults to teenagers and children.

Many children suffer from insomnia, phobias, night terrors, nightmares, intrusive thoughts, etc., that the therapist cannot address directly in a dialogue-based therapy. LENS Neurofeedback improves self-regulation by your patient, allowing you to progress more quickly and with greater ease in your therapy.

Obsessive Compulsive Disorder

Obsessive compulsive disorder is a very resistant anxiety disorder. The application of repeated sessions of LENS as an adjuvant to painstaking therapeutic work have led in many cases to relieving rituals, repetitions, obsessions and fears, etc.


LENS Neurofeedback is ideal for reverting conditions acquired abruptly or suddenly. The after-effects of short-duration physical and/or emotional trauma revert quickly with LENS. Trauma of long duration will always require a greater number of sessions and good therapeutic work.

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