Yes: The active ingredient in marijuana can cause blood vessel dilation on the ocular surface. The tetrahydrozoline in Visine will constrict the vessels making them less noticeable .
Answered 6/11/2017
1.8k views
Red eyes: Yes visine will get the red out temporarily and is safe to use for short periods of time. You could build up a tolerance to the eye drops effect if it is used on a regular basis
Answered 4/23/2016
1.4k views
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