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.
Coloboma can affect one eye (unilateral) or both eyes (bilateral), and can affect a number of different parts of the eye. It can affect the iris which is the colored part at the front of the eye. It can affect the lens, the part of the eye which helps focus light onto the retina.