Congratulations to the winner of our January quiz, Matthew T. Feng, MD, Research Fellow, Department of Ophthalmology and Vision Science, University of Arizona, Tucson. The correct answer to our January challenge was orbital ganglioneuroma. For a complete discussion of this case, see the Letters: Research Letters section in the February Archives (Choi HY, Lee JH, Park JM, Shin MK. Orbital ganglioneuroma in a young healthy person. Arch Ophthalmol. 2009;127: 223-225).