Cornea, Lens, and Iris The iris is the colored part of the eye. A circular muscle in the iris controls the amount of light entering the eye through the pupil, the black area in the center of the iris.
Michael is the caddy for 20-year-old phenom golfer Jordan Spieth, who recently made a huge statement on golfâs biggest stage, tying for second place at the 2014 Masters in Augusta, Georgia, with a 5-under par performance for the tournament. Everything was working in the major for Spieth â and for Michael as well.
On Jordan Spiethâs Bag: Part Caddie, Part Teacher and Encourager. Jordan Spieth with his caddie, Michael Greller, after his Masters victory on Sunday. Spieth and Greller have worked together since 2011. AUGUSTA, Ga. â The caddie Jim Mackay took the golf bag and moved it out of the path of the foot traffic in the scoring area.