Submitted for Publication: July 22, 2014; final revision received October 29, 2014; accepted October 31, 2014.
Published Online: December 26, 2014. doi:10.1001/jamaophthalmol.2014.5251.
Study concept and design: Shevach, Ali, Inglehearn, Jalas, Banin, Sharon.
Acquisition, analysis, or interpretation of data: Shevach, Ali, Mizrahi-Meissonnier, McKibbin, El-Asrag, Watson, Ben-Yosef, Blumenfeld, Sharon.
Drafting of the manuscript: Shevach, Ali, Mizrahi-Meissonnier, McKibbin, Inglehearn, Banin, Sharon.
Critical revision of the manuscript for important intellectual content: Ali, El-Asrag, Watson, Ben-Yosef, Blumenfeld, Jalas, Banin.
Statistical analysis: Shevach.
Obtained funding: Ali, El-Asrag, Inglehearn, Banin, Sharon.
Administrative, technical, or material support: Mizrahi-Meissonnier, McKibbin, Watson, Inglehearn, Ben-Yosef, Blumenfeld, Jalas.
Study supervision: Ali, Inglehearn, Banin, Sharon.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Funding/Support: The study was financially supported by the Foundation Fighting Blindness (grant BR-GE-0510-0490-HUJ to Prof Sharon), the Yedidut 1 research grant (to Prof Banin), the Leeds Teaching Hospitals NHS Trust Challenge Fund and Yorkshire Eye Research grant 022 (to Prof Inglehearn), and a Scholarship from the Egyptian government (to Mr El-Asrag).
Role of the Funder/Sponsor: The funders had no role in the design and conduct of the study; collection, management, analysis, or interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Additional Contributions: We thank Dvorah Abeliovich, PhD (from Hadassah–Hebrew University Medical Center), for her assistance in analyzing patients with RP and Dalia Eli, PhD (from Hadassah–Hebrew University Medical Center), for her assistance in recruiting patients for the study. No compensation was received from a funding sponsor for such contributions.