VOMS: The 10-Minute Eye Test That Predicts Concussion Recovery Better Than Anything Else

If you’ve never heard of VOMS, you’re not alone. But this 10-minute vestibular and ocular motor screening may be the single most valuable component of a concussion baseline — and it’s the one most programs skip.

What VOMS actually measures

VOMS stands for Vestibular/Ocular Motor Screening, developed at the UPMC Sports Medicine Concussion Program by Mucha et al. and published in The American Journal of Sports Medicine (2014). It evaluates five domains of vestibular and eye movement function:

• Smooth pursuits — following a moving target with your eyes
• Horizontal and vertical saccades — rapid eye movements between two fixed points
• Near point of convergence (NPC) — focusing on an object as it moves toward your nose
• Vestibulo-ocular reflex (VOR) — maintaining visual focus while moving your head
• Visual motion sensitivity (VMS) — tolerance of visual movement in your peripheral field

Why VOMS matters so much

The original validation study found that NPC distance ≥5 cm increased the probability of identifying a concussion by 38%. Subsequent research, including work by Kontos et al. (2016) published in the American Journal of Sports Medicine, demonstrated that vestibular-ocular deficits are among the strongest predictors of prolonged recovery — meaning athletes with VOMS abnormalities after concussion are the ones most likely to have symptoms lasting weeks or months rather than days.

A review published in Current Pain and Headache Reports confirmed that athletes with vestibular and ocular motor impairments are at significantly greater risk for protracted recovery courses.

Why most programs skip it

Yet the overwhelming majority of baseline testing programs only assess cognition. They skip the test that best predicts who will struggle and recover slowly. This is like a physical exam that checks your blood pressure but skips your heart rate — you’re missing critical information that changes clinical management.

What VOMS requires

VOMS takes approximately 10 minutes to administer and requires no special equipment beyond a target (a fingertip or pen tip) for the athlete to follow and a ruler to measure NPC distance. It does require a trained administrator who can accurately assess eye movements and note provoked symptoms (headache, dizziness, nausea, fogginess) at each stage.

How we use it

At Headquarters, VOMS is a standard component of every baseline we perform. We believe it’s essential, not optional. If your current baseline provider doesn’t include vestibular-ocular screening, you’re missing the component that matters most for predicting recovery. For a tool-by-tool comparison, see our piece on ImPACT vs. SCAT6 vs. King-Devick vs. VOMS.

Frequently asked questions