MYDRIATIC Meaning and
Definition
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Mydriatic is an adjective used to describe a substance or drug that causes or promotes the dilation of the pupil of the eye. The term is derived from the Greek words "mydriasis," meaning dilation of the pupil, and "iatros," meaning physician or medicine.
When applied topically or instilled into the eye, mydriatic substances work by stimulating the dilation of the iris muscles, specifically the dilator muscle, resulting in an enlargement of the pupil's size. This dilation allows for a greater amount of light to enter the eye, thus facilitating various diagnostic and therapeutic procedures.
One common example of a mydriatic drug is tropicamide, a widely used anticholinergic agent that temporarily dilates the pupil for ophthalmic examinations. Other mydriatics include atropine, phenylephrine, and cyclopentolate, which each have their own specific mechanisms of action and durations of effect.
Mydriatic agents are frequently employed in ophthalmology for procedures such as retinal examinations, cataract surgeries, and intraocular pressure measurements. By dilating the pupil, these substances enable a clearer visualization of the structures within the eye, aiding in accurate diagnosis and treatment.
While mydriatic drugs are generally safe, they can present certain side effects, including blurred vision, increased sensitivity to light, and temporary vision disturbances. It is therefore crucial to follow proper dosage and administration guidelines to minimize any potential risks associated with their use.
In summary, mydriatic refers to substances or drugs that promote the dilation of the pupil, enhancing visibility during eye examinations and surgical procedures.
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1. Causing mydriasis or dilatation of the pupil. 2. An agent which dilates the pupil a cycloplegic.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for MYDRIATIC
Etymology of MYDRIATIC
The word "mydriatic" is derived from the Greek words "mydriasis" (μυδρίασις) and "mydrias" (μυδρίας).
"Mydriasis" comes from the combination of "myein" (μῦειν) meaning "to shut" or "squeeze", and "drias" (δρίας) meaning "pupil". Therefore, "mydriasis" refers to the dilation or enlargement of the pupil.
"Mudrias", on the other hand, means "having dilated pupils", and the suffix "-ic" is added to indicate its adjectival form. Hence, "mydriatic" specifically refers to something that causes pupil dilation or is used in the dilation of the pupil.
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