5 doctors weighed in:
How long do red eyes last when a teen is high of weed?
5 doctors weighed in

Dr. Kevin Nasky
Psychiatry
2 doctors agree
In brief: Several Hours
Usually 2-4 hours from the time of last use, though that can vary considerably depending on the amount used, the potency, etc.
Also, cannabis's ocular effects will vary from person to person.

In brief: Several Hours
Usually 2-4 hours from the time of last use, though that can vary considerably depending on the amount used, the potency, etc.
Also, cannabis's ocular effects will vary from person to person.
Dr. Kevin Nasky
Dr. Kevin Nasky
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Dr. Kevin Passer
Pediatrics - Psychiatry
1 doctor agrees
In brief: Not long
Probably not more than a few hours or so.
Not everyone develops red eyes from cannabis use. I would not guage a person's use on whether his or her eyes were red. If there is a concern, other messures such as urine drug screening are much more accurate. You need to ask what you will do if a test is positive before doing such a test. Good luck.

In brief: Not long
Probably not more than a few hours or so.
Not everyone develops red eyes from cannabis use. I would not guage a person's use on whether his or her eyes were red. If there is a concern, other messures such as urine drug screening are much more accurate. You need to ask what you will do if a test is positive before doing such a test. Good luck.
Dr. Kevin Passer
Dr. Kevin Passer
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