Hand pain can be caused by disease or injury affecting any of the structures in the hand, including the bones, muscles, joints, tendons, blood vessels, or connective tissues. Hand pain is one feature of joint inflammation (arthritis) that may be felt in the hand.
Marijuana and the Eyes. Marijuana has a few key effects on the eyes. One of the most noticeable occurs shortly after smoking the drug: redness of eyes. THC in marijuana lowers blood pressure which dilates the blood vessels and increases blood flow throughout the body.
Marijuana affects reaction time, short-term memory, hand-eye coordination, concentration, and perception of time and distance. Even if you think you're a better driver when you're high...you're not. Driving High is Illegal. Consuming any amount of marijuana before or during driving will put you at risk for DUI.