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.
Medical Marijuana and Glaucoma. It is estimated that more than 3 million Americans suffer from glaucoma, a disease of the major nerve of vision called the optic nerve. Without diagnosis and treatment, glaucoma can progress to loss of central vision and blindness. Worldwide, glaucoma is the leading cause of irreversible blindness. Effective treatment for glaucoma involves the use of drugs or surgical procedures that prevent progressive optic nerve damage. The only method of accomplishing this is by lowering intraocular pressure (IOP).