Vision and hearing testing for regulated and safety-sensitive roles
CAOHC-certified audiometry for your OSHA hearing conservation program, plus acuity, color, depth, and peripheral vision screening. Results printed the same visit.
For employers
Run the whole hearing conservation program through one clinic
Baselines for new hires, annual recalls, STS follow-up, and mobile booth testing at your site for crews of 15 or more.
What is tested
Hearing at seven frequencies, vision across five checks
Audiograms are run in a sound-treated booth with a calibrated audiometer by a CAOHC-certified technician, and reviewed against the employee’s baseline for a standard threshold shift.
Vision screening confirms an employee meets the acuity, color, and depth requirements written into DOT, public-safety, and equipment-operator job standards.
- Noise-exposed workers (85 dBA TWA+)
- Forklift and crane operators
- Police, fire, and EMS candidates
- Annual surveillance programs
Pure-tone audiometry
Thresholds at 500, 1000, 2000, 3000, 4000, 6000, and 8000 Hz in each ear.
STS review
Average shift of 10 dB or more at 2, 3, and 4 kHz vs. baseline, age-corrected if the employer elects.
Distance and near acuity
Snellen or Titmus vision screener, each eye and both, with and without correction.
Color vision
Ishihara plates; identifies red-green deficiency for signal and wiring roles.
Depth perception and field
Stereopsis and horizontal peripheral field; required for CDL and many operator standards.
Employees who cannot meet a standard are referred, not failed; the clinician documents the finding and the employer decides on accommodation.
How it works
From booth to report in one visit
Audiometers calibrated annually; daily functional checks logged.
Employer sets protocol
Baseline vs. annual, whether age correction applies, and which vision standards the role uses.
Otoscopy and audiogram
Ear canal check, then thresholds in each ear. Retest on any frequency the employee hesitates on.
Vision screening
Acuity, color, depth, and field, with and without the correction the employee wears at work.
Review and report
Technician compares to baseline; a possible STS is flagged for the reviewing clinician and a retest within 30 days.
Before you come in
What to bring and how to prepare
The single biggest cause of an invalid baseline audiogram is noise exposure in the 14 hours before the test.
Good to know
- Baseline audiogram: 14 hours away from workplace noise, or wear hearing protection for that period.
- Avoid loud music, concerts, and power tools the evening before.
- Tell the technician about any cold, ear infection, or ringing that day.
Bring
- Photo ID and employer authorization
- Glasses or contacts you wear at work
- Hearing aids, if you use them (removed for testing)
- Your prior audiogram, if your baseline is on file elsewhere
Results
What the employer receives
Employers get pass/refer results and the data their program requires; the employee receives their audiogram and any referral. Diagnoses stay with the clinic.
Employee
Same visit
- Printed audiogram and vision results
- Written notice within 21 days if an STS is found
- Referral for a clinical audiology or eye exam if indicated
Employer
Same business day
- Meets / does not meet the role’s vision standard
- Audiogram with baseline comparison and STS flag
- Recordable-shift determination (25 dB from audiometric zero) for the OSHA 300 log
Program record
Retained
- Baseline and every annual audiogram for duration of employment
- Calibration and booth background-noise records
- Available for OSHA inspection on request
Common questions
Vision and hearing testing, answered
Answers from our collectors and clinicians. General information, not medical or legal advice.
Who needs an annual audiogram?
Any employee exposed at or above an 8-hour time-weighted average of 85 dBA must have a baseline within 6 months of first exposure and an audiogram every year after. General information, not legal advice.
What happens if a shift is found?
We can retest within 30 days to confirm. If confirmed, the employee is notified in writing within 21 days, fitted or refitted for hearing protection, and referred if the shift may be medically related.
Can the baseline be revised?
Yes. The reviewing professional can revise the baseline if a confirmed STS persists, or if thresholds show significant improvement. It is documented in the record.
Do you test to DOT vision standards?
Yes: 20/40 in each eye and both eyes together, 70-degree horizontal field in each eye, and recognition of standard traffic colors. The DOT physical itself must be done by a certified medical examiner; we do those too.
Due for annual audiograms?
Monday–Friday, 7am to 5pm at Denver, Lakewood, Parker, and Thornton. Hablamos Español.
- Denver(303) 531-4144
- Thornton720-531-8377
- Parker720-409-0007
- Lakewood(720) 689-9655