Yes — people with vision in only one eye can and do obtain driver's licenses in the United States. But whether a specific individual qualifies, and under what conditions, depends on their state's vision standards, the license class they're applying for, and how their functional vision measures against established thresholds.
Every state sets minimum vision standards that applicants must meet to receive a standard driver's license. These typically include two components:
Most states require a minimum visual acuity of 20/40 in at least one eye, with or without correction. Some states set the threshold at 20/50 or 20/60. A person with one functioning eye can meet this standard if that eye reaches the required acuity level.
Visual field is where monocular drivers — those with usable vision in only one eye — often face closer scrutiny. Binocular vision naturally produces a wider field of view. Someone using only one eye typically has a narrower field, and some states set minimum horizontal field requirements (commonly around 70 to 140 degrees, depending on the state) that an applicant must meet.
👁️ The key point: states evaluate the functional vision you have, not simply how many eyes you're using.
For most first-time applicants, the vision screening happens at the DMV using a standard vision testing machine. The examiner checks your acuity and may check your field of vision. If your results meet state minimums, you move forward in the licensing process.
If your vision doesn't meet the standard screening thresholds, many states will ask you to provide a vision report from a licensed eye care professional — an ophthalmologist or optometrist. That report documents your corrected and uncorrected acuity, your visual field, and any conditions affecting your vision. The DMV uses that report to determine whether you meet eligibility requirements, sometimes under a restricted license condition.
Many states issue licenses with restrictions when a driver's vision falls outside normal parameters but still meets a functional minimum. For monocular drivers, common restrictions include:
| Restriction Type | What It Means |
|---|---|
| Corrective lenses required | Must wear glasses or contacts while driving |
| Daylight driving only | Prohibited from driving after dark |
| No highway or freeway driving | Limited to lower-speed roads |
| Outside mirrors required | Both left and right mirrors mandated |
| Speed limitations | Maximum speed lower than standard |
Not every monocular driver receives restrictions — some meet standard thresholds without any. Others receive one or more of the above. The specific restrictions, if any, are determined by the state DMV based on the applicant's documented vision.
This is where the rules become significantly stricter. Federal Motor Carrier Safety Administration (FMCSA) standards govern CDL medical requirements, and those standards apply uniformly across all states for drivers operating vehicles in interstate commerce.
Federal physical qualification standards for CDL holders require distant visual acuity of at least 20/40 in each eye, with or without corrective lenses. They also require a horizontal visual field of at least 70 degrees in each eye.
For most monocular drivers, this means they do not meet the standard federal vision requirement for a CDL — not because state DMVs have made that determination, but because the federal standard specifies per-eye requirements.
However, there is a federal vision exemption program administered by the FMCSA. Drivers who cannot meet the standard vision requirement may apply for an exemption, which — if granted — allows them to operate commercial motor vehicles in interstate commerce. These exemptions are evaluated individually and are not guaranteed.
State-only commercial driving (intrastate operations) may have different rules, since some states set their own physical standards for drivers who operate only within state lines. Requirements vary.
There is no single national standard for standard (non-commercial) licenses. States have their own acuity thresholds, field-of-vision requirements, and policies for restricted licenses. A few things that vary:
A monocular driver who qualifies in one state may face different requirements if they move and need to transfer their license to a new state.
Whether someone with one eye can get a driver's license — and what that license allows — depends on:
🔍 Two people, both monocular, applying in the same state can end up with different outcomes depending on measured acuity, field of vision, and whether corrective lenses bring their vision into compliance.
The question of whether you qualify — and under what restrictions — comes down to your state's specific standards and how your vision measures against them. That's information your state DMV and your eye care provider are the right sources for.
