MYDRIASIS Meaning and
Definition
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Mydriasis is a medical term that refers to the dilation or enlargement of the pupils of the eyes. The word is derived from the Greek terms "mydriasis," meaning dilation, and "myein," meaning to shut or close, reflecting the physiological response of the pupils during this condition.
Pupils normally have the ability to widen or constrict in response to changes in light intensity, allowing proper regulation of the amount of light that enters the eye. Mydriasis occurs when the circular muscle of the iris, known as the iris sphincter muscle, is unable to constrict the pupil, resulting in an expanded pupil size. This dilation causes the pupils to become larger than their normal size, sometimes to the point that they completely occupy the iris.
Mydriasis can be a natural response to certain circumstances, such as when in dimly lit environments or during times of heightened emotional arousal. However, it can also occur as a result of various medical conditions, drug reactions, or side effects of medications. These underlying causes may include conditions affecting the nervous system, such as head trauma, brain tumors, or certain types of drug intoxication.
While mydriasis itself is not a disease, it can be an indicator or symptom of an underlying medical concern. Therefore, if an individual notices persistent or unexplained dilation of the pupils, seeking medical attention is advisable to determine the cause and receive appropriate treatment if necessary.
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A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for MYDRIASIS
- nydriasis
- kydriasis
- jydriasis
- mtdriasis
- mgdriasis
- mhdriasis
- mudriasis
- m7driasis
- m6driasis
- mysriasis
- myxriasis
- mycriasis
- myfriasis
- myrriasis
- myeriasis
- mydeiasis
- myddiasis
- mydfiasis
- mydtiasis
- myrdiasis
- hydroasis
- mydreysis
- mydreasis
Etymology of MYDRIASIS
The word "mydriasis" has its roots in the Greek language. It is derived from two Greek words: "myein" (meaning "to close") and "drias" (meaning "pupil"). When combined, these words form "mydriasis", which refers to the prolonged dilation of the pupil of the eye.
Similar spelling words for MYDRIASIS
- madrassahs,
- Metarrhysis,
- madrasas,
- medressehs,
- Mattresses,
- matrosses,
- madrases,
- maderizes,
- medreses,
- mydriases,
- maderises,
- madarosis,
- madrassas,
- madaroses,
- midriasis,
- matrasses,
- Matrices,
- motorises,
- metricize,
- motorizes,
- metricise,
- mattrasses,
- madrasahs.
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