Definition of night blindness in English:

night blindness

noun

  • less technical term for nyctalopia
    • ‘Lack of vitamin A causes night blindness, with hundreds of thousands of children, particularly in Southeast Asia, affected.’
    • ‘Vitamin A is important for photoreceptor mechanisms in the retina and the integrity of epithelia, so deficiency can lead to night blindness.’
    • ‘They are usually registered partially sighted by their thirties, suffering night blindness and losing their peripheral vision to become severely visually disabled.’
    • ‘For night flying, engineers added special flame-suppressing exhaust stacks to it to prevent night blindness in crew members.’
    • ‘Initially manifested as night blindness in young dogs, as PRA progresses, its victims become totally blind.’
    • ‘The earliest symptoms of vitamin A deficiency are night blindness.’
    • ‘If the liver blood is insufficient, there will be a dryness of the eyes, blurred vision, or night blindness.’
    • ‘Patients might also have bone pain, muscle cramps, night blindness, and easy bruising as a result of malabsorption of fat-soluble vitamins.’
    • ‘The abundant vitamin A contained in these foods can prevent vision decline and eye diseases like coronal dryness, night blindness and xerophthalmia, another form of dryness in the eye.’
    • ‘Although it was well known that deficiency of vitamin A caused night blindness, we were the first to demonstrate the actual damage of the rods and cones of the retina of new born monkeys, following maternal deficiency of vitamin A.’
    • ‘Five to 6% of women reported a history of night blindness, a clinical symptom of vitamin A deficiency.’
    • ‘Regular carrot intake can also help protect against macular degeneration and cataracts, help minimise night blindness and reduce harmful cholesterol.’
    • ‘Progressive retinal atrophy is a disease in which the retina slowly deteriorates, producing night blindness in young dogs.’
    • ‘Impaired fat soluble vitamin absorption may also occur leading to osteopenia, increased clotting times, and night blindness.’
    • ‘The team also found cases of night blindness caused by the lack of vitamin A.’
    • ‘These include exhaustion, weight loss, night blindness, dehydration, diarrhoea and hunger-related deaths.’
    • ‘Affected individuals are sensitive to blue light and develop night blindness at an early age.’
    • ‘Approximately halfway to the summit, however, Dr Weathers realized he had night blindness.’
    • ‘We describe two patients with congenital stationary night blindness, a diagnosis which may be missed without appropriate history taking from the parents, particularly if there is no family history of visual problems.’
    • ‘He suffers from night blindness, but this hasn't stopped him winning three Paralympic titles and a host of other medals.’

Pronunciation:

night blindness

/nīt ˈblīn(d)nis/