Bibliografisk note

Funding Information:
We would like to thank Dr Tien‐En Tan for his kind assistance during the revision of this manuscript. This work was supported by the National Medical Research Council, Singapore (NMRC/CIRG/1401/2014) and the National Health Innovation Centre Singapore (NHIC‐l2D‐170818l) to DM, and the Singhealth Duke‐NUS Academic Medicine Research Grant (AM/TP018/2018) to RPN. The funding organizations had no role in the design and conduct of the research. RPN and DM have a patent application based on the handheld pupillometer used in this study (PCT/SG2018/050204): Handheld ophthalmic and neurological screening device. The rest of the authors have no conflicts of interest to disclose. Data availability requests may be made to DM.