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Validation Study

Inadvertent Extraocular Resistance Training During Eye-Movement Desensitization and Reprocessing: Refractive Correction at the Cost of an Acquired 21:9 Visual Field — A Single-Centre Validation Study

Vera Okuneva1,2, G. D. Ramenskaya1

  1. 1Institute of Ocular Reprocessing, Snellen Desensitization Clinic
  2. 2Centre for Refractive Saccadics, Lateral Rectus Conditioning Suite

Journal of Refractive Reprocessing. 2026;5(2):e0118-e0136.

PMID: 81880626 · DOI: 10.1069/satire.2026.0035

Received 2025 Nov 26 · Accepted 2026 Jan 28 · Published 2026 Feb 18

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Abstract

Background: Eye-Movement Desensitization and Reprocessing (EMDR) delivers, per protocol, several hundred large-amplitude horizontal saccades per session. We reasoned that this constitutes, unintentionally, a structured course of resistance training for the lateral rectus muscles and asked whether a standard twelve-session course remodels the globe and alters refraction and visual field.

Methods: In a single-centre validation study, adults with mild-to-moderate myopia (n = 30, one of whom watched the orientation video in 16:9 and reported feeling left out) completed twelve weekly EMDR sessions of horizontal tracking only. Autorefraction, horizontal and vertical globe diameter, automated perimetry, lateral rectus cross-sectional area, and the patient's self-reported perceived field aspect ratio were recorded at baseline and at week 12. The pre-registered primary endpoint was change in spherical equivalent; the secondary endpoint was vertical visual field extent.

Results: Spherical equivalent improved from −3.50 D to −0.75 D (p < 0.049, barely), and 71% of participants discontinued corrective lenses. The improvement was structural: the globe elongated along the horizontal meridian, the lateral recti hypertrophied (mean cross-sectional area +18%), and the vertical visual field narrowed from 128° to 61°. Perceived field aspect ratio converged on 21:9, scaling almost perfectly with session number (r = 0.97). Participants described the result as 'letterboxed,' 'cinematic,' and, in three cases, reported that 'the ceiling had gone soft.' No participant could subsequently read a vertically printed sign without rotating their head.

Conclusion: A standard course of EMDR corrects refractive error by mechanically reshaping the eyeball, and in doing so trades vertical visual field for a wider, cinematic aspect ratio. The refractive benefit is genuine; the net visual benefit is unclear, the net cinematic benefit substantial. We do not recommend EMDR as a refractive therapy, while acknowledging that the resulting field is immersive and that no participant asked to have it reversed.

Keywords: EMDR; Refraction; Extraocular Muscles; Visual Field; Aspect Ratio.

Figures

(down) Time since publication Citations
Figure 1.Vertical visual field extent (degrees) across twelve sessions. The descent is smooth, monotonic, and ends at the precise angle a director would have chosen.
r = 0.97 Donations (a.u.) Awakening (a.u.)
Figure 2.Session number versus perceived field aspect ratio. The fit toward 21:9 is too clean to be muscular and too consistent to be anything else.

Full text

The muscle nobody was training

EMDR is described, and billed, as a treatment for distressing memories. It is also, mechanically, the most consistent course of lateral-rectus exercise most patients will ever undertake: several hundred maximal horizontal excursions per session, twelve sessions, no rest day. We did not set out to correct anyone’s vision. We set out to measure what happens to a muscle that is exercised this faithfully for any reason at all.

Width as a side effect

The refractive improvement was real and, on imaging, entirely structural — the globe was simply pulled longer in the direction it was most often asked to move. The cost is paid vertically. As the horizontal meridian gained, the upper and lower field receded, and the world settled into the 21:9 frame our participants came to call cinematic. We note, without endorsing it, that not one of them wished to go back.

Limitations

The cohort was small (n = 30) and self-selected for tolerance of looking sideways. Our primary instrument for aspect ratio was the patient’s own report, which by week 12 was collected from people who could no longer read the vertical axis of the questionnaire. We consider the convergence on a standard cinematic ratio either a profound finding about ocular plasticity or a coincidence the lateral rectus happened to arrive at first.

Conflict of Interest Statement
V. Okuneva discontinued her own corrective lenses during the trial and now reports watching films without a television. G. D. Ramenskaya retains a vertical visual field and considers it an advantage the manuscript declines to acknowledge. Neither author holds a stake in any cinema, though one has been invited to several.
Funding
Supported by a small grant from a regional cinema (Grant No. WIDE-21-9). The funder requested no changes beyond the aspect ratio, which had already occurred.
Ethics Statement
Approved by an institutional review board that read the protocol horizontally and approved the first line. Informed consent was obtained on a single-column form; by week 12 several participants could no longer read it, having consented at week 0 while still able to.

Cite

Okuneva V, Ramenskaya GD. (2026). Inadvertent Extraocular Resistance Training During Eye-Movement Desensitization and Reprocessing: Refractive Correction at the Cost of an Acquired 21:9 Visual Field — A Single-Centre Validation Study. Journal of Refractive Reprocessing. 2026;5(2):e0118-e0136. https://doi.org/10.1069/satire.2026.0035

References

  1. Okuneva V. The lateral rectus as an untrained muscle: a missed opportunity. J Refract Reprocess. 2025;4(3):e0099.
  2. Ramenskaya GD. Horizontal saccade load per EMDR session: a quantification. Ocular Exerc Physiol. 2025;3(2):e0033.
  3. Anon. Globe elongation along the meridian of greatest practice. Arch Adaptive Optics. 2025;5(5):e0055.
  4. Okuneva V. Discontinuing lenses and acquiring black bars: a personal series. Case Refract. 2026;1(1):e0003.
  5. Anon. The vertical visual field as the price of correction. Perimetry Lett. 2025;4(2):e0042.
  6. Ramenskaya GD. Lateral rectus hypertrophy on imaging: +18% and counting. J Orbital Imaging. 2025;7(7):e0077.
  7. Okuneva V. Reading horizontally but not vertically: a functional asymmetry. Funct Vis Q. 2026;1(1):e0009.
  8. Anon. Why the ceiling 'goes soft': a phenomenology of the lost upper field. Subjective Optics. 2025;8(8):e0088.
  9. Okuneva V, Ramenskaya GD. Perceived aspect ratio as a clinical endpoint. Methods Refract. 2025;2(4):e0024.
  10. Anon. 16:9 versus 21:9: patient preference among the remodeled. Cine Ophthalmol. 2025;6(2):e0061.
  11. Okuneva V. The cinema grant and the conflict it did not create. Disclosure Lett. 2026;1(1):e0001.
  12. Anon. Single-column consent forms in a horizontally reading cohort. Ethics Vis. 2025;5(5):e0056.
  13. PubMedLie Editorial Office. Disclaimer: this is satire.
  14. Ramenskaya GD. Reversing the field: nobody asked. J Untaken Interventions. 2026;2(1):1-4.
  15. Okuneva V. Twelve weeks of looking sideways: a protocol. Saccade Train Manual. 2025;9(1):1-9.
  16. Anon. The director's angle and the muscle that found it. Coincidence Stud. 2026;2(1):1-2.