Online EMDR vs In-Person EMDR: Is Online EMDR as Effective for PTSD?

Eye Movement Desensitisation and Reprocessing (EMDR) is an evidence-based psychological treatment for post-traumatic stress disorder (PTSD). With the expansion of telehealth, a key clinical question has emerged: does EMDR delivered online produce the same outcomes as traditional face-to-face therapy?

Current research suggests that online EMDR is broadly comparable in effectiveness to in-person EMDR, with both delivery methods producing clinically significant reductions in PTSD symptoms.

What EMDR is and how it works

EMDR is a structured psychotherapy approach that facilitates the processing of distressing memories through dual-attention stimulation (such as bilateral eye movements) while recalling traumatic material. The mechanism is commonly understood through models of memory reconsolidation and adaptive information processing, where traumatic memory networks are re-integrated into more adaptive associative structures.

The core therapeutic mechanism is not dependent on physical setting, but on attention regulation, working memory taxation, and trauma memory reprocessing.

Can EMDR be delivered online?

EMDR can be delivered via secure video platforms using adapted protocols that preserve the core components of bilateral stimulation and dual attention focus. Clinically, this includes visual tracking, auditory tones, or tactile alternatives facilitated by the therapist.

Telehealth EMDR has become more widely used since the COVID-19 period, prompting research into its comparative effectiveness with in-person delivery.

What the research shows

UK NHS service evaluation

A multi-method NHS trauma service evaluation compared outcomes for clients receiving EMDR online versus in-person. The study found no significant differences in dropout rates, treatment completion, or adverse events. Both groups showed substantial reductions in PTSD symptoms across treatment (Strelchuk et al., 2023).

Veteran cohort study

A multisite retrospective cohort study of veterans receiving EMDR found significant symptom improvement in both telehealth and in-person groups. In-person EMDR showed slightly greater average symptom reduction, but both formats produced clinically meaningful outcomes and similar engagement levels (Fairbanks et al., 2025).

Is online EMDR as effective as in-person therapy?

Overall, current evidence indicates that:

• Both online and in-person EMDR produce significant reductions in PTSD symptoms
• Differences in outcomes between formats are small and inconsistent
• No evidence suggests online EMDR is clinically inferior in routine practice

The current research base does not support a clear superiority of either delivery method.

What influences outcomes more than delivery format

Across studies, variability in outcomes appears more strongly associated with clinical and contextual factors than modality itself:

• Strength of therapeutic alliance
• Client capacity for emotional regulation during processing
• Environmental safety and privacy during sessions
• Stability of technology and session continuity
• Quality of preparation and stabilisation before trauma processing

These factors influence processing depth and integration more consistently than whether EMDR is delivered online or in-person.

Limitations of the current research

The evidence base includes a mix of service evaluations and retrospective cohort studies rather than large randomised controlled trials directly comparing delivery formats. This limits causal certainty.

However, the direction of findings is consistent: EMDR remains effective across both modalities, with no clear reduction in clinical outcomes associated with telehealth delivery.

Summary: clinical implications for clients

Current evidence suggests that online EMDR is a valid and effective treatment option for PTSD. While some studies show marginally stronger outcomes in-person, both formats reliably produce meaningful symptom reduction.

For many clients, practical considerations—such as access, comfort, and consistency—may be as clinically relevant as modality when choosing between online and in-person EMDR.

Click here to find out more about Online EMDR.

References

Strelchuk, D., Turner, K. M., Smith, S., Bisson, J. I., Wiles, N. J., & Zammit, S. (2023). Provision of online eye movement desensitisation and reprocessing therapy for PTSD: a multi-method service evaluation. https://pubmed.ncbi.nlm.nih.gov/38073540/

Fairbanks, C. L. D., Penix-Smith, E. A., Glitsos, S., Keener, K. D., et al. (2025). Multisite retrospective review of EMDR delivered via telehealth versus in-person. https://doi.org/10.1037/tra0001917

U.S. Department of Veterans Affairs – National Center for PTSD. EMDR treatment overview. https://www.ptsd.va.gov/professional/treat/txessentials/emdr_pro.asp