night blindness

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Night Blindness

Definition: Night blindness is a noun that describes the inability to see clearly in low light or darkness. This condition can happen because of a lack of vitamin A or problems with the retina in your eyes.

Usage Instructions:

• Use "night blindness" when talking about difficulty seeing at night or in dimly lit places.
• It is often used in medical contexts or when discussing vision problems.

Example:

• "After eating poorly for several months, Maria noticed she had night blindness and struggled to drive at night."

Advanced Usage:

• In a medical setting, you might hear it referred to as "nyctalopia," which is a more technical term for night blindness.
• You could also discuss the impact of night blindness on daily activities, such as driving or walking in the dark.

Word Variants:

• Noun: night blindness
• Adjective: night-blind (describing someone or something affected by night blindness).

Different Meanings:

• While "night blindness" specifically refers to difficulty seeing in the dark, it does not imply complete blindness. It means that a person can see, but not as well as they can in bright light.

Synonyms:

• Nyctalopia (technical term)
• Poor night vision
• Dim light vision impairment

Idioms and Phrasal Verbs:

• There aren't specific idioms or phrasal verbs directly related to "night blindness," but you might hear phrases like "in the dark," which can mean not understanding something, similar to how someone with night blindness may not see well in darkness.

Conclusion:

Night blindness is an important term to know, especially if you are discussing health, vision, or any related topics.

Academic

Noun

1. inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder

Synonyms

• nyctalopia
• moon blindness