night blindness

noun

: reduced visual capacity in faint light (as at night)
night-blind adjective

Examples of night blindness in a Sentence

Recent Examples on the Web The film revolves around a 10-year-old boy who suffers from night blindness and for whom every night is terrifying when his village is gripped by the fear of child kidnappers. Naman Ramachandran, Variety, 12 Mar. 2024 What are the dangers for those experiencing night blindness? Matthew Solan, Chicago Tribune, 31 Jan. 2024 The Garo-language film, which revolves around a 10-year-old boy who suffers from night blindness and for whom every night is terrifying when his village is gripped by the fear of child-kidnappers, originated from another memory of Sangma, who hails from Meghalaya in northeastern India. Naman Ramachandran, Variety, 7 Aug. 2023 Without adequate levels of Beta-Carotene, the production of rhodopsin can be impaired, leading to vision problems such as night blindness. Discover Magazine, 30 June 2023 In humans, a genetic alteration here decreases the stability and effectiveness of rhodopsin pigments in the retina, sparking a condition known as congenital stationary night blindness. Byjack Tamisiea, science.org, 24 Mar. 2023 Ironically, the genetic alteration is surprisingly similar to one that degrades pigments in human retinas, causing night blindness. Byjack Tamisiea, science.org, 24 Mar. 2023 As the rods and cones die off, people with the disorder experience night blindness and tunnel vision, and eventually become legally or totally blind. Linda Marsa, Discover Magazine, 2 Jan. 2019 He is afflicted by night blindness, a possible consequence of his own malnutrition early in life. Raj Patel, Scientific American, 22 Sep. 2021

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'night blindness.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1625, in the meaning defined above

Time Traveler
The first known use of night blindness was in 1625

Dictionary Entries Near night blindness

Cite this Entry

“Night blindness.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/night%20blindness. Accessed 17 Apr. 2024.

Kids Definition

night blindness

noun
: subnormal vision in faint light (as at night)
night-blind adjective

Medical Definition

night blindness

noun
: reduced visual capacity in faint light (as at night)

called also nyctalopia

night-blind adjective

More from Merriam-Webster on night blindness

Last Updated: - Updated example sentences
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