The participants' best-corrected distance acuity was measured using a rear-illuminated Snellen chart at 6 meters (about 20 feet, or closer if the participant was not able to read the 6/60 optotype) and converted to LogMAR notation for the purposes of analysis.
Overview. Vanadium is a trace mineral found in many foods. Scientists think your body may need vanadium in very small amounts for normal bone growth. Scientists aren't sure exactly what effects vanadium may have, or what amount might be helpful, however, they know high doses of vanadium are likely to be unsafe.
Vanadium is chemical element 23 on the periodic table. Its symbol is V. Vanadium is a metal and is part of the group known as the transition metals. It is mostly used in steel where it helps strengthen the steel metal. Vanadium is often found in aquatic forms of life. The human body may need a little bit of vanadium, but scientists are not really sure.