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What muscle is responsible for mydriasis?
a group of smooth muscles called sphincter pupillae cause the pupil constriction which is known as mydriasis.
What drugs cause mydriasis?
for the illegal drugs: the withdrawal of opioids such as morphine is known to cause mydriasis.
Does cannabis cause miosis?
No, in animals even casuse mydriasis
Does mydriasis go away on its own?
depend on the cause of the mydriasis. if it is a dysfunction of the cranial nerve number three it won't go unless treated. another cause is withdrawal from opioids and it is go on it's own.
Does Macular Degeneration cause mydriasis?
Macular degeneration itself does not directly cause mydriasis (dilated pupils). Mydriasis can result from various factors, including medications, neurological conditions, or eye trauma, but it is not a typical symptom of macular degeneration. Macular degeneration primarily affects central vision and the retina, leading to vision loss rather than changes in pupil size. If someone experiences mydriasis, it's important to consult a healthcare professional to determine the underlying cause.
What is mydriasis?
dilation of the pupil.
What will sympathetic stimulation of the eye do?
Sympathetic stimulation of the eye will cause dilation of the pupil (mydriasis) and relaxation of the ciliary muscle for far vision.
Which is not an action of cholinergic drugs?
Dilation of the pupils (Mydriasis)
What is the effect of administration of a miotic agent?
Miotic agents cause the pupil of the eye to constrict, or become smaller. Mydriasis is the opposite, making the pupil dilate like when you go to the eye doctor.
Why Phenylephrine cause mydriasis but not cycloplegia?
Phenylephrine is an alpha one adrenergic receptor agonist. The radial muscles of the iris are innervated by neurons with alpha one receptors thus it causes dilation when stimulated. However the ciliary body of the eye (which controls accommodation) is controlled by muscarinic 3 cholinergic receptors. That pathway for accommodation remains unaffected while the iris is dilated so you will not get cycloplegia.
Does Sudafed have a reaction on pupils?
Yes, Sudafed (pseudoephedrine) can cause pupil dilation, a condition known as mydriasis. This occurs because the medication stimulates the sympathetic nervous system, which can affect the muscles controlling pupil size. Additionally, some individuals may experience other side effects such as dry eyes or blurred vision. If you have concerns about this reaction, it's advisable to consult a healthcare professional.
What is the chemical cause of sore muscles?
Lactic acid settling in the muscles
