diplopia
/di'ploupiə/
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.
Noun
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visual impairment in which an object is seen as two objects
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diplopia often disappears when one eye is covered
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