SEE Sick Syndrome and motion sickness: are they the same?
Many Australians experience nausea on winding drives through the Blue Mountains or feel dizzy after a bumpy bus ride across the Nullarbor Plain. These sensations are often labelled motion sickness, but emerging research in visual neuroscience suggests a distinct condition called SEE Sick Syndrome may be responsible for many of these episodes. Coined by optometric physician Dr. Roderic Gillilan, the syndrome describes a cluster of symptoms triggered specifically by visual motion rather than physical movement alone.
The confusion between traditional motion sickness and this visually-triggered disorder is understandable, given that both can leave sufferers feeling green around the gills. Recognising the difference matters because the treatment pathways diverge significantly. While conventional motion sickness responds to antihistamines and pressure-point wristbands, SEE Sick Syndrome requires targeted visual therapy and adaptive eye training to recalibrate how the brain processes moving patterns.
Defining the two conditions
Motion sickness has been documented for centuries and arises when conflicting signals reach the brain from the inner ear, eyes, and sensory nerves. It typically strikes during car trips, boat rides, or flights where the body senses movement that the eyes may not see, or vice versa. SEE Sick Syndrome, by contrast, is triggered primarily by visual stimuli such as patterns moving across screens, scrolling news feeds, or flickering fluorescent lights, without requiring actual physical motion.
The condition was formalised by Dr. Roderic Gillilan, who observed that many patients reporting car sickness or sea sickness were actually responding to the visual field of motion around them. This insight shifted the therapeutic focus from vestibular suppression to visual rehabilitation, opening doors for drug-free interventions that retrain the eyes and brain.
Shared triggers and overlapping symptoms
| Feature | Motion sickness | SEE Sick Syndrome |
|---|---|---|
| Primary trigger | Physical movement in vehicles, boats, or aircraft | Visual motion from screens, scrolling, or flickering lights |
| Core symptoms | Nausea, vomiting, sweating, pallor | Nausea, headaches, dizziness, light sensitivity |
| Onset | During or shortly after movement | During visual exposure, often delayed |
| Duration | Minutes to hours after stimulus stops | Can persist for days with repeated exposure |
| Inner ear involvement | Significant | Minimal or none |
| Response to antihistamines | Often effective | Limited |
Both conditions share a troubling roster of complaints: queasiness, cold sweats, and a desperate wish to lie down in a dark room. Headache and dizziness appear across both diagnoses, which explains why many people in Brisbane or Adelaide self-medicate with travel sickness tablets when their real problem is the flickering LED display at the local servo or the endless scroll of social feeds on the train.
Where they diverge
The critical difference lies in the sensory pathway. Motion sickness originates in a mismatch between vestibular input and visual input, making the inner ear a key player. SEE Sick Syndrome bypasses the vestibular system almost entirely, instead overwhelming the visual cortex with patterns it cannot reconcile quickly enough.
This distinction explains why a passenger might feel fine on a ferry across Sydney Harbour but become violently ill watching a first-person video game at home. The former involves genuine motion detection; the latter is purely visual chaos. Recognising this helps clinicians tailor treatment rather than reaching for the same travel sickness script every time.
The visual processing angle
Australian optometrists have noted increasing reports of visually-induced nausea among office workers staring at multiple monitors and tradies using VR headsets for training simulations. The brain's visual motion processing centres, located in the medial temporal and parietal regions, can become hypersensitive after concussions, migraines, or prolonged screen exposure.
Dr. Gillilan's approach focuses on retraining these neural pathways through Dynamic Adaptive Vision Therapy. Unlike traditional eye exercises that strengthen muscles, this method recalibrates how the brain interprets motion cues. For those interested in the practical side of recovery, how to train your eyes offers a clear starting point.
Why Australians face unique risks
The Australian lifestyle presents particular challenges for visually-sensitive individuals. Long-haul domestic flights between Perth and the eastern seaboard expose passengers to hours of in-flight entertainment on seatback screens, which is prime SEE Sick Syndrome territory. Outback road trips often involve hours of staring at repetitive scenery, with the road shimmering in the heat and scrub blurring past the windows.
The nation's love of beachside living means many residents deal with bright glare reflecting off sand and surf, while AFL matches and cricket broadcasts feature rapid camera pans that can trigger symptoms in sensitive viewers. Even a quick stop at a local café with patterned tiles and harsh downlights can spark discomfort for someone with an undiagnosed visual processing issue.
Diagnosis and professional assessment
Identifying SEE Sick Syndrome requires a different clinical lens than standard motion sickness evaluations. General practitioners may refer patients to vestibular specialists, but those specialists are trained to look for inner ear dysfunction, which is typically absent in these cases. Optometric physicians with training in neuro-visual rehabilitation are better equipped to assess visual processing speed, motion sensitivity, and ocular coordination.
Australians in regional areas often face limited access to such specialists, with most concentrated in Sydney, Melbourne, and Brisbane. Telehealth consultations have helped bridge this gap, allowing rural patients in places like Cairns or Hobart to receive preliminary assessments and therapy plans without travelling to a capital city.
Management strategies and eye training
Managing the syndrome centres on reducing visual triggers and gradually retraining the brain's response to motion. Simple adjustments include lowering screen brightness, using larger fonts, taking regular breaks from devices, and wearing tinted lenses in visually chaotic environments like shopping centres or train stations. When symptoms flare, closing the eyes and applying a cool compress can help reset overstimulated neural pathways.
For Aussies planning a big lap around the country or simply commuting along the M1, pacing screen time is crucial. During long drives, passengers should avoid reading or scrolling on phones and instead look at the horizon to provide stable visual input. The site's coverage of online entertainment options touches on how digital content consumption has become woven into travel downtime, though screen-heavy activities warrant caution for those prone to visual nausea.
Practical recommendations for travellers and screen users
- Schedule regular visual breaks every 20 minutes during screen work, looking at a distant object for at least 20 seconds
- Choose window seats on planes and trains to allow peripheral visual input that matches physical motion
- Reduce blue light exposure in the evening to prevent overstimulation of the visual cortex
- Stay hydrated, particularly during hot Australian summers when dehydration can amplify dizziness
- Consider professional visual therapy if symptoms persist beyond a few days after removing obvious triggers
The key distinction worth carrying forward is that motion sickness stems from physical movement conflicts, while SEE Sick Syndrome arises from visual input alone, though the symptoms may feel identical. For Australians navigating vast distances and increasingly digital lives, understanding this difference opens the door to more effective, drug-free treatment. Visual retraining offers hope for those who have spent years dismissing their discomfort as ordinary travel sickness.