Vision Acuity Standards For Most States
Binocular (vision in both eyes)
Acuity of or better than 20/200 in each eye with or without lenses.
Horizontal field must be at least 70 degrees temporal in each eye.
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License Type
|
Minimum Acuity
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Daylight
1 Driving
Only
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No License
|
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Commercial Driver’s License that is not required to meet
391 Standards
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20/40 or better both eyes together
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20/50 thru 20/60
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worse than 20/60 both eyes
|
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Commercial Driver’s License that is required to meet 391
Standards including all School Buses
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20/40 or better in each eye
|
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worse than 20/40 in each eye unable to see colors of lights
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Personal Drivers License,
Motorcycle,
Motorized Bicycle (Moped).
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20/40 or better both eyes together
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20/50 thru 20/70 both eyes together
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worse than 20/70 both eyes together
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Monocular (vision in only one eye)
Person is totally blind in one eye or has a visual acuity in that eye
of worse than 20/200.
Horizontal field must be at least 70 degrees temporal and 45 degrees
nasal in the best eye.
|
License Type
|
Minimum Acuity
|
Daylight
1 Driving
Only
|
No License
|
|
Commercial Driver’s License that is not required to meet
391 Standards |
20/30
|
20/40 thru 20/60
|
Worse than 20/60
|
|
Personal Drivers License,
Motorcycle,
Motorized Bicycle (Moped).
|
20/30
|
20/40 thru 20/60
|
Worse than 20/60
|
391 Standards is a School Bus endorsement or a Commercial
Drivers License required to meet the Federal Standards for public
utility or entity such as public transit.
The
most common method of testing vision requires that the individual being
tested must look into a Keystone
device and read certain sized bold black-faced random numbers
(0 1 2 3 4 5 6 7 8 9) on a yellow background. Each eye is tested
separately and then together
These number sets can be arranged by acuity in any order,
bottom-up, top-down, left to right, or right to left.
The square indicated by C-2 is the one
that dictates a person’s freedom or…
Note. There are states that
do allow tele-bioptic
aids to obtain a daylight1
hours only driver's license. A bioptic aid is a small telescope mounted
in or over the lens of a pair of glasses.
The telescope aids the driver in seeing
road signs and other objects at a distance. These standards are
roughly 20/40 through the telescope and 20/100 with a regular lens,
what is known as the carrier lens.
[1]
In most states, Daylight Hours is defined as: one half
hour after sunrise to one half hour before sunset.
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