Congratulations to the winner of our March quiz, Ravi D. Patel, MD, PGY4 Resident, Section of Ophthalmology and Visual Science, Department of Surgery, University of Chicago, Chicago, Illinois. The correct answer to our March challenge was argyrosis. For a complete discussion of this case, see the Letters: Research Letters section in the April Archives (Palamar M, Midilli R, Egrilmez S, Akalin T, Yagci A. Black tears [melanodacryorrhea] from argyrosis. Arch Ophthalmol. 2010;128:503-505).