Fallen Cannabis Warrior
Cannabis reacts in your body as a sympathomemetic does. That means that it causes the bronchiole passages in your lungs to dilate or open up. It causes the blood vessels to slightly contract and the heart rate to go up. It also causes dry mouth, dry eye. It's the dry eye which results in redness of the eye. All you have to do is moisturized your eyeball with Visine or something like that on a regular basis. Just like you sip water every ten minutes to combat cotton mouth, you must moisturize your eyes every hour or so.