Night blindnessCzechia
245. Night blindness
Night blindness, also called nyctalopia, is reduced ability to see in darkness or low-light conditions. It can make it difficult to recognise pedestrians, cyclists, road markings, bends or obstacles at night and during twilight. Night blindness can have different causes, including certain eye conditions, vitamin deficiencies or problems with the retina. Drivers who have difficulty seeing in low light should avoid driving in conditions where their vision is inadequate and seek professional eye care.
Wikimedia.org • Alex Proimos • CC BY
What is night blindness?
Night blindness is difficulty seeing in darkness or low-light conditions, even when daytime vision may be relatively good.
🔗 gov.uk • GOV.UK, health conditions and driving; GB reporting example
🔗 nei.nih.gov • US National Eye Institute, low vision and night blindness
Why is night blindness dangerous when driving?
It can make pedestrians, cyclists, road edges, signs and obstacles harder to detect, reducing the time available to react safely.
🔗 gov.uk • GOV.UK, health conditions and driving; GB reporting example
🔗 nei.nih.gov • US National Eye Institute, low vision and night blindness
Is night blindness the same as being completely blind at night?
No. Night blindness usually means reduced vision in dim conditions, not a complete loss of sight.
🔗 gov.uk • GOV.UK, health conditions and driving; GB reporting example
🔗 nei.nih.gov • US National Eye Institute, low vision and night blindness

Traffic rules
Czechia