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Doctor insights on: Pupil Constriction

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Does pilocarpine drop constrict the dialated pupil completely to the normal or does it shows very less constriction. How to verify if the drops work?

Does pilocarpine drop constrict the dialated pupil completely to the normal or does it shows very less constriction. How to verify if the drops work?

Miosis: Topical Pilocarpine is a pupillary constrictor. In a normal pupil the Pilocarpine will make the pupil smaller than normal. If the pupil has been previously dilated it will not necessarily constrict the pupil to normal or smaller. It depends on what dilated your pupil. Some dilating agents like Atropine are not reversed by pilocarpine. Weaker agents like mydriacl will be slowly over-come by pilo. ...Read more

Pupil (Definition)

The pupil is the opening in the iris inside of the eye though which light is focused on the retinal film at the back of the eye. The iris can open and close in response to light to vary the amount inside the eye. It is what looks red, in the ...Read more


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Wanted to know if acetyl cholinesterase inhibitors can cause constriction of the eye pupil?

Wanted to know if acetyl cholinesterase inhibitors can cause constriction of the eye pupil?

Yes: cholinesterase inhibitors for topical use in glaucoma treatment enhance the effect of endogenously liberated acetylcholine in iris, ciliary muscle, and other parasympathetically innervated structures of the eye. It thereby causes miosis, increase in facility of outflow of aqueous humor, fall in intraocular pressure, and potentiation of accommodation. ...Read more

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Tuesday 6am awoke to severe jaw pain & and constriction around chest (below breast line). This morning , 6:40am, again. Pupils 1/2 size of dime?

Tuesday 6am awoke to severe jaw pain & and constriction around chest (below breast line).
This morning , 6:40am, again. Pupils 1/2 size of dime?

WARNING!: These symptoms must be considered as Heart Disease. You may be about to have a heart attack. You require a Cardiology consultation thru your docs office or thru the ER. Call 911 if pain recurs or go see your doc today. Jaw pain can be referred pain from your heart,so,this along with constricting chest pain must b immediately evaluated. Let us know how u r. ...Read more

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My pupils constantly keep changing, what can I do?

My pupils constantly keep changing, what can I do?

They are supposed to: Pupils are supposed to constantly change as they react to light and accommodate to help focus on a subject. ...Read more

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What causes small pupils?

Many causes: Without more information, the most inclusive answer is numerous medical conditions, prescription and non-prescription medications, and/or illicit substances. Some of these conditions and/or medications/substances can be harmful/lethal without medical attention. ...Read more

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Why does your pupil dilate?

Pupil: Because a part of the autonomic nervous system (sympathetic) , when stimulated, will caused two sets of muscles in your iris to change the diameter of the whole in the center (the pupil). ...Read more

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My pupils are not centered, why?

My pupils are not centered, why?

Strabismus: This is a condition called strabismus and usually has to do with a weak eye muscle. Please see an ophthalmologist for evaluation soon ...Read more

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What do enlarged pupils look like?

Bigger than normal: The pupil, the dark part of the eye when enlarged have a significantly larger part of the than when not enlarged. ...Read more