When light, noise, and busy places feel overwhelming after a concussion
Track sensory triggers, plan what to say, and adjust home, work and outings
Imagine a 29 year old bank teller who was a passenger when a van ran a red light and hit the side of her car. Two months later, the overhead lights at work make her squint by midmorning. The clatter of the break room feels like it is inside her head. She skipped her nephew’s birthday party because of the noise, and her family thinks she is pulling away from them.
Sensitivity to light and sound is a real and common part of concussion [1]. It can also shrink your world if fear of a flare keeps you home. The goal is to protect yourself on hard days while you slowly widen what you can handle.
This guide gives you a sensory trigger log, plans for the conversations you may need to have, and changes to try at home, at work and on outings. If reading and screens are your main problem, the article in this section on reading and screens goes deeper on that.
Why light and sound can feel like too much
The CDC counts sensitivity to light or noise as one of the body symptoms a concussion can cause [1]. Clinicians call light sensitivity photophobia. Sound sensitivity goes by several names, including phonophobia and hyperacusis, which means everyday sounds seem too loud or even painful [4].
Researchers are still working out why this happens. A 2022 review says light sensitivity after a brain injury seems to involve nerve pathways that also carry headache pain and eye sensation [8]. It adds that dry eye and migraine are common after a brain injury and may feed the problem [8]. For sound, a brain injury program in Ontario explains that the brain may not handle sound the way it did before the injury [5].
Several things can add to sound sensitivity, according to an NHS Scotland brain injury resource. They include hearing loss, trouble with attention and processing, high anxiety, and habits such as wearing earplugs [4]. For that reason, the resource advises a hearing assessment and attention to anxiety [4].
Why busy places are hardest
Stores, restaurants and parties pile many inputs on at once: bright light, motion and background chatter. Canada’s Living Concussion Guidelines note that bright light and visually crowded settings can make symptoms flare [6]. Military concussion guidance asks patients directly whether crowded or busy places make them feel sick or disoriented [9]. The NHS Scotland resource names supermarkets, family gatherings, restaurants and cinemas as places where sound sensitivity often causes discomfort [4].
How long it tends to last
A Dutch study followed 186 adults with mild traumatic brain injury (mild TBI) from six hospitals and compared them with 181 people who had minor arm or leg injuries [2]. Each person was checked four times over a year. Between 2 weeks and 3 months, light and noise sensitivity were more common in the mild TBI group than in the comparison group [2]. About 3% had sensitivity the whole year, and by 12 months the two groups no longer differed in lasting symptoms [2].
Other sources paint a harder picture. The 2022 review says that after a brain injury, many people with light sensitivity can have it for a year or longer [8]. One possible reason for the gap is who was studied. The Dutch team followed everyone from the hospital, while a review of people with light sensitivity may lean toward those who sought care for it.
A 2022 eye care statement focuses on young people. It reports light sensitivity, blurred vision or double vision in up to 40% of children and teens soon after a concussion. Most recover within 4 weeks [10]. A Canadian concussion program for adults says most people find these symptoms ease without treatment [11].
If yours are lasting, you are not alone, and help exists at any stage. Symptoms that are not easing deserve a check by your care team [11].
The trap of too much protection
When light and noise hurt, it makes sense to shut them out, but constant shielding can backfire. Vancouver Coastal Health’s concussion program warns that avoiding triggers for too long can leave you even more sensitive [11]. It suggests slowly cutting back on earplugs and dark glasses indoors [11].
The NHS Scotland resource goes further. It says tinted lenses or sunglasses worn indoors or in normal light are likely to make light sensitivity worse, and should be avoided unless a professional advises them [3]. It says the same of earplugs and earphones for sound sensitivity, and it warns against overprotecting someone from normal sound levels [4].
In a 2015 discussion published by the American Academy of Ophthalmology, a neuro ophthalmologist spoke about light sensitivity from many causes. She said dark glasses worn inside keep the eyes adapted to the dark, which makes the problem worse [12]. These warnings come from rehabilitation programs and eye experts, not from large trials, so ask your care team how they apply to you.
You can still protect yourself in loud rooms. The Ontario program suggests ear filters while you are in a noisy place, but not all day, and warns that overusing filters or noise cancelling earbuds can worsen sensitivity [5]. Canada’s guideline says people may consider noise cancelling headphones or dimmer screens, alongside teaching about tolerance and a gradual increase in exposure [6]. Use these tools for the hardest stretch of a bright or noisy outing, then take them off.
What about colored lenses?
A 2017 study at a University of Cincinnati rehabilitation clinic tried lenses of different colors with 51 people being treated after concussion [13]. Of the 39 with vision symptoms, 76% were bothered by light [13]. Among those, 85% got relief from at least one color, and no harms were reported [13]. That is one small study at one clinic. In a university news release, the researchers also advised against wearing colored lenses while driving, because some colors make stop lights and emergency lights hard to see [14]. The 2022 review says finding the cause of light sensitivity may bring more relief than tinted lenses alone [8]. Ask your care team before you buy special lenses.
Keep a sensory trigger log
A log turns a vague sense of being overwhelmed into details you can act on. It shows which settings cause trouble, how fast symptoms build and how long you need to recover. That makes it easier to plan outings and to explain your needs.
Keep it for one to two weeks. Rate how you feel from 0 (no symptoms) to 10 (worst) before and after each exposure. Note what you used to protect yourself, such as ear filters or a hat with a brim, and for how long.
Worksheet from Safety Behind the Wheel Foundation
My sensory trigger log
| Where and when | What I noticed (light, sound, motion, crowd) | Rating before and after (0 to 10) | Time to recover and what helped |
|---|---|---|---|
| Example: Work, 10 a.m. | Overhead lights, printer noise | 2, then 5 | 30 minutes in the quiet room |
| Example: Grocery store, Sat noon | Bright aisles, music, crowd | 2, then 6 | Most of the afternoon; lay down |
Canada’s guideline suggests keeping increases small, about 2 points or less on a 10 point scale [6]. Bring the log to your next visit.
Reading your log
After a week, look for patterns. Which settings push your rating up the most? Do symptoms rise fast or creep up over an hour? Do you bounce back in minutes or need the rest of the day? A long recovery after a short exposure suggests you went too far, too fast.
Also note good outcomes. A visit to a quiet cafe that left you at a 3 tells you where to start building.
Building tolerance step by step
Canada’s guideline recommends a graduated exposure program for noise, light and other sensory sensitivities [6]. The aim is to choose activities that nudge your symptoms up by about 2 points or less on a 10 point scale [6]. NHS Scotland says controlled, slowly rising exposure is likely the most effective treatment for noise sensitivity, with specialist support [4].
The Ontario tip sheet suggests starting at home. You might listen to a comfortable sound, such as nature sounds or soft instrumental music, for 10 minutes, then work up to 30 [5]. It also advises weaning yourself off ear filters over time [5]. It says steady practice matters most and that symptoms may get worse before you notice a change [5]. For light, the Vancouver program suggests turning the dimmer down a bit less from one day to the next [11]. A big spike in symptoms is a sign to pull back a little [11].
A sample two week plan
This is one example. Adjust it with your care team.
- Days 1 to 3: Keep lights at a level that raises your rating by 2 points or less. Ten minutes of soft music or nature sounds, twice a day.
- Days 4 to 7: Raise the lights a notch. Twenty minutes of sound, or a short call on speaker.
- Week 2: A 15 minute visit to a small, quiet store at a slow hour. Rest after, and log it.
If anxiety or panic comes up during practice, say so. NHS Scotland lists high anxiety as one factor in sound sensitivity and names clinical psychologists among the professionals who can help [4].
Adjustments for home, work and outings
Adjustments lower the load while you practice. Pick a few, try them for a week, and check your log to see what helped.
Comparison compiled by Safety Behind the Wheel Foundation
Adjustments to try
| Setting | Common triggers | Changes to try |
|---|---|---|
| Home | Bright overhead lights, TV, kitchen noise | Dim bright lights; turn screen brightness down; a quiet room for breaks |
| Home | Several people talking at once | Turn off background TV or music during talks |
| Work | Glare, flicker, bright monitor | Adjusted or filtered light fixtures; lower monitor brightness |
| Work | Open office noise | Desk away from busy areas; noise cancelling headset or sound machine |
| Work | Long stretches of input | Uninterrupted time blocks; flexible schedule; breaks; telework when possible |
| Outings | Crowds, music, bright stores | Quiet times and places; short visits; breaks in a calm spot |
Sources: JAN [7]; Brain Injury Association of America [15]; NHS Scotland [4]; Parkwood Institute [5]; Vancouver Coastal Health [11]; eye care statement [10]; Living Concussion Guidelines [6]. Your care team can help you choose.
At home
For young people, an eye care statement suggests easing visual stress after concussion by lowering screen brightness and limiting screen time [10]. When you talk with family, cut background noise so you can follow along. NHS Scotland suggests keeping background noise low during conversations to make up for slower attention and processing [4].
At work
The Job Accommodation Network (JAN) gives free, confidential help with job accommodations and with the ADA (Americans with Disabilities Act) [7]. Its page on brain injury lists ideas for people bothered by light, such as non fluorescent or natural lighting, filters for harsh overhead lights, cubicle shades and light filtering glasses [7]. For focus and noise, it lists noise canceling headsets, white noise machines, sound absorbing panels and time with no interruptions [7]. It also lists flexible schedules, rest breaks and working from home [7]. JAN notes that these are only a sample of the options [7]. Given the cautions above, use any tinted lenses for the hardest parts of the day, and ask your care team how to cut back over time.
The Brain Injury Association of America notes that adjustments are matched to your duties and your limits, and that a brain injury alone does not entitle you to one [15]. Workplace rules vary, so check your employer’s policy, HR or your state agency. The article in this section on returning to work covers that conversation in more depth.
Outings
The Ontario tip sheet suggests choosing quieter places at first, limiting your time in noise, taking breaks somewhere quiet, and planning and pacing before you go [5]. Vancouver Coastal Health suggests less crowded spaces and turning down the radio [11].
Outing plan checklist
Checklist from Safety Behind the Wheel Foundation
- Pick a quieter time and place, and check the log for your last similar trip.
- Set a time limit and a signal to leave.
- Pack ear filters or a brimmed hat for the hardest stretch, not the whole trip.
- Find a quiet spot nearby, such as a bench outside or a parked car where you can sit as a passenger.
- Bring a companion who knows the plan.
- Plan rest afterward and log your ratings.
If glare or noise is still a problem, let someone else drive. Canada’s guideline advises not driving while concussion symptoms remain [16], and the Cincinnati researchers advise against colored lenses for driving [14].
Plan your conversations
Sensory problems are invisible, so people may not understand why you leave early or ask for the lights to be dimmed. A short, planned script makes these talks easier. Use the parts that fit.
With family and friends
- I want to be there. Loud rooms set off my concussion symptoms right now. Could we meet somewhere quieter, or could I come for the first hour?
- When the TV and conversation run at the same time, I lose track. Could we turn it off while we talk?
- I am practicing with light and noise a little more each week. If I step out, I just need a short break, and I will come back.
With your manager or HR
- Since my concussion, fluorescent light and open office noise give me headaches and break my focus. Can we discuss some changes, such as a quieter desk, a glare filter, or a headset?
- My care team expects this to improve. Could we try these changes for a month and then review?
Before a work talk, gather your trigger log, a list of the tasks most affected, and any note from your care team. The Brain Injury Association of America suggests talking with your employer about what works best in your role [15]. If you are unsure whether you qualify, or think a request was wrongly denied, it recommends talking with a disability rights attorney [15].
Get emergency care right away
Sometimes a new or worsening symptom means you need help fast. Call 911 or get to an emergency department now if, after a head injury, you notice any of these [1]:
- Head pain that keeps climbing with no relief.
- Weakness, numbness, decreased coordination, convulsions or seizures.
- Vomiting that keeps returning.
- Slurred speech or unusual behavior.
- One pupil larger than the other.
- Trouble recognizing familiar faces or places, or sudden confusion, agitation or restlessness.
- Losing consciousness, deep drowsiness, or being impossible to wake.
Questions to ask your care team
Question checklist from Safety Behind the Wheel Foundation
- Could dry eye, migraine or a vision problem be adding to my light sensitivity?
- Should I have my hearing tested or see an audiologist about sound sensitivity?
- When should I use sunglasses, tinted lenses, earplugs or headphones, and when should I cut back?
- Can you help me plan graded exposure, and who could guide it?
- How much of a symptom increase is okay during practice?
- Could anxiety be making this worse, and would a psychologist help?
- Can you write a note about workplace adjustments?
- Given my symptoms, when can I safely drive again?
Frequently asked questions
Should I wear sunglasses indoors?
Brain injury resources advise against it unless a professional has recommended it, because it may raise sensitivity over time [3, 11]. Short use for a hard situation is different from wearing them all day. Ask your care team.
The bottom line
Recommendation from Safety Behind the Wheel Foundation
Light, noise and busy places can overwhelm you after a concussion, and for most people this improves within months [2, 11]. Shielding yourself all the time can make you more sensitive, so pair short term protection with slow, planned exposure [4, 6].
Keep a trigger log, plan your conversations, and try a few changes at home, at work and on outings. Check your employer’s policy or your state agency about workplace rights, and check with your own care team before changing treatments or getting behind the wheel again.
Sources and further reading
- 1Centers for Disease Control and Prevention. Symptoms of Mild TBI and Concussion. Updated September 15, 2025. cdc.gov/…/signs-symptoms/index.html
- 2Marzolla MC, Wijenberg M, Stapert S, Hurks P, Schepers J, van Heugten C. Hypersensitivity to noise and light over 1 year after mild traumatic brain injury: a longitudinal study on self-reported hypersensitivity and its influence on long-term anxiety, depression, and quality of life. Journal of Head Trauma Rehabilitation. 2023;38(3):259-267. doi.org/10.1097/HTR.0000000000000813
- 3NHS Scotland Acquired Brain Injury Education. Page on light sensitivity (photophobia). Accessed October 2026. acquiredbraininjury-education.scot.nhs.uk/…/?p=2510
- 4NHS Scotland Acquired Brain Injury Education. Page on hypersensitivity to noise (phonophobia). Accessed October 2026. acquiredbraininjury-education.scot.nhs.uk/…/?p=2509
- 5Parkwood Institute, Acquired Brain Injury Outpatient Program, St. Joseph’s Health Care London. Managing noise sensitivity. Tip sheet. Accessed October 2026. sjhc.london.on.ca/media/8494/download
- 6Living Concussion Guidelines. Section 10: Vestibular (balance/dizziness) and vision dysfunction. Updated May 2023. concussionsontario.org/…/vestibular-balance-dizziness-vision-dysfunction
- 7Job Accommodation Network. Brain Injury: accommodation ideas. Accessed October 2026. askjan.org/disabilities/Brain-Injury.cfm
- 8Theis J. Differential diagnosis and theories of pathophysiology of post-traumatic photophobia: a review. NeuroRehabilitation. 2022;50(3):309-319. doi.org/10.3233/NRE-228014
- 9Traumatic Brain Injury Center of Excellence. Assessment and management of dizziness and visual disturbances following concussion/mild traumatic brain injury: guidance for the primary care manager. Revised January 2026. health.mil/…/Assessment-and-Management-of-Dizziness-and-Visual-Disturbances-Following-Concussion-Mild-Traumatic-Brain-Injury
- 10AAP Section on Ophthalmology, American Academy of Ophthalmology, American Association for Pediatric Ophthalmology and Strabismus, American Association of Certified Orthoptists. Vision and concussion: symptoms, signs, evaluation, and treatment. August 2022. aao.org/…/vision-concussion-symptoms-signs-evaluation-treatm
- 11Vancouver Coastal Health, GF Strong Rehabilitation Centre. Light and noise sensitivities. VCH Concussion. Updated July 31, 2019. concussion.vch.ca/light-and-noise-sensitivities
- 12Levi L, Digre KB, Kardon RH. MD roundtable: diagnosing and treating photophobia. EyeNet Magazine, American Academy of Ophthalmology. December 1, 2015. aao.org/…/md-roundtable-diagnosing-treating-photophobia-2
- 13Clark J, Hasselfeld K, Bigsby K, Divine J. Colored glasses to mitigate photophobia symptoms posttraumatic brain injury. Journal of Athletic Training. 2017;52(8):725-729. doi.org/10.4085/1062-6050-52.4.04
- 14University of Cincinnati. Colored glasses may provide light sensitivity relief post-concussion. UC News. July 3, 2017. uc.edu/…/h29207.html
- 15Brain Injury Association of America. Requesting job accommodations after brain injury. Updated June 29, 2023. biausa.org/…/requesting-job-accommodations-after-brain-injury
- 16Living Concussion Guidelines. Section 2: Initial management. Updated August 2022. concussionsontario.org/…/initial_management
This article reflects the safety priorities of brain injury recovery and road safety education. It is general education, not medical or legal advice. Sensory symptoms and workplace rules vary, so check official sources, your employer’s policy or your state agency, and talk with your own care team before changing treatments, buying special lenses or returning to driving. Reviewed October 2026.
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