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Not necessarily. If you are in very bright lighting, your pupils will constrict to limit the amount of light allowed to enter your eye. This protects the retina from damage. Likewise, in very low light levels, your pupils will dilate (enlarge) in order to allow more light into the eye and improve vision. This is a normal process. However, there are a number of drugs that will cause the pupils to constrict, even to the point where they have a "pin-point" appearance. Opioid drugs (drugs derived from the poppy plant) such as opium, heroin, etc., will cause this pupillary constriction to the point of looking pin-point, even if exposed to low lighting levels. If a person is in normal lighting and has pin-point pupils, there is most likely something effecting this abnormal change.

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15y ago

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Related Questions

What does restricted pupils mean?

Its when your pupils get really small like when light hits it


Can tiny pupils come from eye problems?

no if your pupils are tiny it just means your in the light. your pupils change sizes due to the light. If your in a dark room the will be big if your in a light room they will be smaller.


How do you constrict your pupils under water?

practise how to use tiny muscles in your eyes to constrict your pupils


If your eyes are dilated does that mean you are on drugs?

Next time you take drugs look in the mirror..if your pupils are dilated, then you are on drugs. However, if your pupils are permanently dilated it could be a potentially serious eye condition., which an optician would be the first person to ask, and he will conduct an eye test.


Causes of pin point pupils?

POSSIBLY DRUGS -


What OTC drugs dilate pupils?

Dramamine, Diphenhyramine:)


Which is not an action of cholinergic drugs?

Dilation of the pupils (Mydriasis)


Why are all dogs pupils so tiny?

because they smell


What illegal drugs cause pinpoint pupils?

Listing them all would be time-consuming so lets put it this way. Drugs can cause a pupil to change in two ways by dilation making the pupil larger or constricting the pupils. Only two drugs constrict the pupils those being opiates and alcohol. So anything but, these can cause the pupils to dilate.


Causes of pinpoint pupils?

Bright light (as one natural reason). Opiate based drugs and medications can cause pinpoint pupils.


Drugs that cause constriction of the pupils begins with m?

morphine and methadone.


What will make your pupils small?

When light come into your eye your pupils will get smaller. In a dim or dark room your pupils will enlarge to let in more light so you can see. Also some drugs will make your pupils smaller, or when your high they dilate.