PINHOLE PUPIL Meaning and
Definition
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A pinhole pupil refers to a medical condition where the pupil, the dark circular opening at the center of the iris that controls the amount of light entering the eye, appears very small and constricted. In this condition, the pupil takes the shape of a pinhole, resembling a tiny dot rather than a normal circular shape. The pinhole pupil is often a sign or symptom of a variety of underlying health conditions or disturbances.
This condition can be caused by several factors, including neurological disorders, certain medications, drug abuse, brainstem injury, or damage to the nerves that control the muscles responsible for pupil dilation. Additionally, pinhole pupils can be an indication of a severe state of arousal or intense arousal due to emotional or psychological distress.
The presence of pinhole pupils can be detected during a routine eye examination or observed by someone familiar with the condition. It is essential to consult with a medical professional to determine the underlying cause of the pinhole pupils and receive appropriate treatment, as it may vary depending on the specific condition or underlying health issue.
Overall, the pinhole pupil is a condition characterized by a noticeably constricted and small-sized pupil, often indicating an underlying health problem.
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An extremely contracted pupil.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PINHOLE PUPIL
- oinhole pupil
- linhole pupil
- -inhole pupil
- 0inhole pupil
- punhole pupil
- pjnhole pupil
- pknhole pupil
- ponhole pupil
- p9nhole pupil
- p8nhole pupil
- pibhole pupil
- pimhole pupil
- pijhole pupil
- pihhole pupil
- pingole pupil
- pinbole pupil
- pinnole pupil
- pinjole pupil
- pinuole pupil
- pinyole pupil
Etymology of PINHOLE PUPIL
The word "pinhole pupil" does not have a clear etymology as it is a descriptive term rather than a distinct word with a specific origin. The term is used to describe a medical condition called "miosis", which refers to abnormal constriction or narrowing of the pupil of the eye.
However, if we break down the term, "pinhole" refers to a small hole made by a pin or needle. It is used metaphorically to describe the contracted and constricted size of the pupil, resembling a tiny hole. "Pupil" refers to the circular opening in the center of the iris of the eye, through which light enters.
Hence, "pinhole pupil" essentially describes a pupil that has become abnormally small and constricted, resembling a tiny hole.
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