diplopia

/di'ploupiə/

Thân thiện

A patient experiences diplopia when reading a book.

Definition

Noun: A medical condition of double vision, where a single object is perceived as two separate images. This visual impairment typically results from misalignment of the eyes or issues with binocular vision.

Usage

Diplopia is a technical medical term. It is used in clinical, scientific, and formal contexts to describe the symptom of seeing double. - Example: The patient reported sudden-onset diplopia following the head injury. - Example: Diplopia is a common symptom of certain neurological disorders.

Advanced Usage

• Physiological diplopia: A normal phenomenon where objects not focused on by both eyes appear double. This is usually not consciously perceived.
• Binocular diplopia: Double vision that occurs only when both eyes are open and disappears when one eye is covered. This is the most common type referred to by the term .
• Monocular diplopia: Double vision that persists even when one eye is covered, often caused by a problem within the eye itself (e.g., cataract, astigmatism).

Variants and Related Words

• Diplopic (adjective): Relating to or characterized by diplopia.
  • Example: The patient experienced diplopic vision.

Synonyms

• Double vision: The common, non-technical term for diplopia.
• Binocular diplopia: A more specific synonym for the most frequent form.

Antonyms

• Single vision: Normal, unified perception of a single image from both eyes.

Notes

The condition often disappears when one eye is covered, which is a key diagnostic feature to distinguish binocular from monocular causes.

Học thuật

Noun

1. visual impairment in which an object is seen as two objects
   • diplopia often disappears when one eye is covered

Từ đồng nghĩa

• double vision