4 doctors weighed in:
How long do you have to hold a normal pen laser in your eye before it blinds you?
4 doctors weighed in

Dr. Moonyoung Chung
Ophthalmology
1 doctor agrees
In brief: Bad idea
Dangerous permanent damage.

In brief: Bad idea
Dangerous permanent damage.
Dr. Moonyoung Chung
Dr. Moonyoung Chung
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Dr. Joseph Roosth
Internal Medicine
1 doctor agrees
In brief: NEVER DO THIS
An interesting question with a simple answer. Never shine a laser into someone's eyes.
First, there are multiple types of laser pointers. Some low power, some higher, but why risk this at all? So how long you ask? Zero seconds. Don't do it. I found the following, however, which may answer better: http://www.Drgreene.Com/qa/laser-pointers-and-eyes.

In brief: NEVER DO THIS
An interesting question with a simple answer. Never shine a laser into someone's eyes.
First, there are multiple types of laser pointers. Some low power, some higher, but why risk this at all? So how long you ask? Zero seconds. Don't do it. I found the following, however, which may answer better: http://www.Drgreene.Com/qa/laser-pointers-and-eyes.
Dr. Joseph Roosth
Dr. Joseph Roosth
Thank
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