The California DMV eye chart test requires you to read a wall chart or look into a tabletop vision machine and demonstrate at least 20/40 visual acuity with both eyes open. You can wear glasses or contacts to meet that standard. The whole screening takes about a minute at the counter, and you’ll do it every time you apply for a new license or renew in person.
The Passing Score
California law sets three vision thresholds that work together. You need 20/40 or better with both eyes tested at the same time, at least one eye must hit 20/40 on its own, and your weaker eye must reach at least 20/70. You can meet all three with or without corrective lenses.1Cornell Law Institute. California Code of Regulations Title 13 Section 20.03 – Vision Screening
There is also a hard floor. If your better eye cannot reach 20/200 even with corrective lenses, the DMV will not issue or renew your license. Bioptic telescopic lenses cannot be used to meet that 20/200 cutoff.2California Legislative Information. California Vehicle Code Section 12805
How the Test Is Administered
California DMV offices use one of two tools, and you don’t get to pick. The Snellen wall chart is the classic poster with rows of capital letters that shrink as your eye moves down. A technician asks you to stand at a marked distance, cover one eye, and read specific rows, then switch. The smallest row you can read accurately determines your score.
Many offices instead use the Optec 1000, a tabletop machine you lean into and peer through. Instead of reading letters, you identify where a checkerboard pattern appears in a series of increasingly small targets numbered 1 through 6.3California Department of Motor Vehicles. Vision Testing of Renewal Applicants The machine checks each eye and then both together. It’s faster and less affected by room lighting, which is why busier offices tend to prefer it.
Both methods produce the same pass/fail result against the same 20/40 standard. Neither screens for color blindness. California does not require color vision for a standard (Class C) license.
Glasses, Contacts, and the Corrective Lenses Restriction
You can wear glasses or contacts during the screening, and most people who wear them daily should. If you need lenses to pass, the DMV adds a corrective lenses restriction to your license. A code appears on the card, and you are legally required to wear the lenses every time you drive. Getting pulled over without them is a citable offense.4California Department of Motor Vehicles. California Driver’s Handbook – The Testing Process
If you’ve had LASIK or another corrective procedure since your last visit and your uncorrected vision now meets the standard, you can retake the screening at any DMV office and have the restriction removed.
When You’ll Take the Vision Test
You’ll take the vision screening every time you apply for a new license and every time you renew in person.4California Department of Motor Vehicles. California Driver’s Handbook – The Testing Process If the DMV notice tells you to renew in person, an eye exam is part of that visit.5California Department of Motor Vehicles. Driver’s License or ID Card Online Renewal
Online renewal skips the screening entirely, so many drivers go through several renewal cycles without ever facing the chart again. Once you turn 70, California requires you to renew in person every five years, which means a vision screening each time. The DMV can also order a reexamination of your vision at any time if it receives information suggesting your eyesight has deteriorated, such as a report from a family member, a doctor, or law enforcement.6California Department of Motor Vehicles. Evaluating Driver Impairment
How to Prepare
The most useful thing you can do before your visit is get a current eye exam. Prescriptions drift, and lenses that were sharp three years ago may not put you at 20/40 today. An updated prescription is cheap insurance against a failed screening and a return trip.
If you already know you have a vision condition such as macular degeneration, glaucoma, or cataracts, download the Report of Vision Examination (Form DL 62) from the DMV website and bring it to your eye doctor before your DMV appointment. Your doctor fills out the clinical sections, and the exam must have been done within the previous six months.7California Department of Motor Vehicles. Report of Vision Examination Arriving with a completed DL 62 in hand can save weeks compared to failing the screening first and then scrambling to get the form.
If You Don’t Pass
Failing at the counter isn’t the end of the road. The DMV refers you to a vision specialist to complete a DL 62, which you then submit back to the department. Until the DMV reviews it, you won’t get a temporary license or extension.8California Department of Motor Vehicles. Vision Conditions
After reviewing the form, the DMV may schedule a Supplemental Driving Performance Evaluation (SDPE). This is a behind-the-wheel test designed for applicants with vision or other conditions that could affect driving safety. It’s longer and more detailed than the standard road test, with extra lane changes and an examiner who watches how well you compensate in real traffic.9California Department of Motor Vehicles. Preparing for Your Supplemental Driving Performance Evaluation
Three outcomes are possible. If you drive safely despite your condition, you may get a full or restricted license. If your skills could improve with practice, the DMV can issue a restricted license or instruction permit to give you time. If the condition is severe enough that you can’t compensate, the DMV can revoke your driving privilege.8California Department of Motor Vehicles. Vision Conditions
Restrictions are tailored to what your vision can handle. Common ones include daylight-only driving, no freeway driving, a geographic radius from your home, required additional mirrors, or a fixed route between set locations. Some restrictions can be lifted later if you pass a follow-up test, such as a night driving evaluation to remove a daylight-only condition.8California Department of Motor Vehicles. Vision Conditions
Bioptic Telescopic Lenses
California allows driving with bioptic telescopic lenses, which are small telescopes mounted in the upper portion of standard eyeglass lenses. You cannot use the telescope to meet the 20/200 floor, but you can use it to meet the 20/40 screening standard.2California Legislative Information. California Vehicle Code Section 12805 Your carrier lens vision, meaning what you see through the regular part of the glasses, must be better than 20/200. Bioptic drivers still take a driving test, and the DMV will typically add restrictions such as no nighttime driving, no freeway driving, or a geographic limit.
Commercial Drivers
If you hold or are applying for a commercial driver license, the bar is higher and set by federal rule. You need at least 20/40 in each eye individually, at least 20/40 with both eyes together, a minimum 70-degree field of vision in each eye, and the ability to distinguish red, green, and amber.10eCFR. 49 CFR 391.41 – Physical Qualifications for Drivers The per-eye requirement is the big difference. A Class C driver with 20/70 in one eye can still qualify by leaning on the stronger eye, but a commercial driver with that same 20/70 would fail the federal physical. Commercial vision testing happens as part of the DOT medical exam, which must be renewed every two years, and any corrective lenses required are noted on the medical certificate.