23.7.2024
Lesezeit:
4 minutes

Minimum medical requirements

In road traffic, vision is by far the most important sense and is decisive for the ability to drive

Dr. Valéry Vinzent Wittwer

Are there different requirements depending on the vehicle I want to drive?

Yes, there are two groups:
1st group: Category A (motorcycle), A1, B (car), B1, F, Gund M
2nd group: Category C (truck), C1, D, D1, passenger transport, traffic expert

What is expected of the eyes in order to be able to safely drive a vehicle in traffic?

acuity

When driving a passenger car, a driver must be able to fix a distant point on the road. Traffic signs, zebra crossings and town signs must be able to be recognized at greater distances in order to maintain traffic flow. This is only possible with appropriate visual acuity, which can be achieved either with or without glasses.

  • Two-eyed vision, measured separately
    Better eye: 0.5 (2nd group: 0.8)
    worse eye: 0.2 (2nd group: 0.5)
  • One-eyed vision
    Better eye: 0.6
    worse eye < 0.2
visual field

Children playing in a cross street or pedestrians walking on the sidewalk must be visible in the peripheral field of vision of the driver in order to ensure timely braking readiness. Failures in the field of vision can result in pedestrians being detected too late, for example.

  • 1st group
1. Normal binocular field of view
2. Minimum requirement for group 1.


Horizontal >120° (extension left/right at least 50°)
Vertical > 40° (up/down extension at least 20°)

  • 2nd group
    Horizontal >140° (extension left/right at least 70°)
    Vertical > 40° (up/down extension at least 30°)
1. Normal binocular field of view
2. Minimum requirement for group 2
Eye mobility and perception

The driver must be able to quickly change the direction of vision from the fixing point in the distance to passers-by on the side of the road in order to be able to determine whether they want to cross the road or not. The eyes must therefore be able to move in different directions in a very short time without seeing twice.
Visual acuity should enable clear vision at a distance as well as at medium distances (e.g. using progressive glasses). This requirement is not explicitly required by law.

Twilight vision

Drivers must have sufficient visual acuity not only in daylight but also at dusk to be able to safely participate in road traffic. Small visual defects are often only annoying at dusk, as is slight clouding of the natural lenses (beginning cataract).

glare sensitivity

Increased sensitivity to glare can affect the vehicle driver and thus reduce safety as a road user. Glare is a phenomenon that usually results from opacities in the tear film, in the cornea or in the natural lens (beginning Grauer Star) is attributable.

> Source

You might also be interested in this

Prevention

Preventive care for adults

Through preventive examinations, eye diseases can be identified at an early stage and treated effectively. The intervals at which meaningful preventive examinations are carried out depend on various factors