Author Contributions: Dr J. A. Shields had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Financial Disclosure: None reported.
Funding/Support: This work was supported by Eye Tumor Research Foundation, Philadelphia, Pennsylvania (Drs J. A. Shields and C. L. Shields).
Role of the Sponsor: The sponsor had no role in the design and conduct of the study; in the collection, analysis, and interpretation of the data; or in the preparation, review, or approval of the manuscript.