night blindness

Thân thiện

A person with night blindness struggles to read a book in a dimly lit room.

Definition

Noun: - Inability to see clearly in dim light: A condition characterized by poor vision in low light or darkness, often due to a deficiency of vitamin A or a disorder of the retina.

Usage

• This term is used as a medical or descriptive term for a specific visual impairment. It is typically used in formal, medical, or scientific contexts.
• Example:

Examples

Advanced Usage

• "Suffer from night blindness": To experience the condition.
  • He suffers from night blindness and avoids driving after sunset.
• "Cause of night blindness": Referring to the origin of the condition.
  • The main cause of night blindness in the region was nutritional deficiency.

Variants and Related Words

• Nyctalopia (n): The formal medical term for night blindness.
  • Nyctalopia is the technical term for night blindness.
• Day blindness (Hemeralopia) (n): A related but opposite condition involving poor vision in bright light.

Synonyms

• Nyctalopia: The direct synonym and technical term.
• Poor night vision: A more general, descriptive phrase.

Related Phrases

• Night vision: The general ability to see in low light, not necessarily impaired.
  • Cats have excellent night vision.
• Vitamin A deficiency: A common cause of the condition.
  • Night blindness is a classic symptom of vitamin A deficiency.

Học thuật

Noun

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

Từ đồng nghĩa

• nyctalopia
• moon blindness