Footnotes

• Contributors All authors have full control of all primary data and they agree to allow BJO to review their data upon request. All authors made substantial contributions to conception and design, acquisition of data, or analysis and interpretation of data. All authors drafted the article or revised it critically for important intellectual content. All authors gave final approval of the version to be published.

• Funding This work is supported by the IOP photonics devices programme managed by the technology foundations STW and AgentschapNL (IPD067774).

• Competing interests There is no commercial relationship between the authors and the manufacturers of the tested devices.

• Patient consent Obtained.

• Ethics approval Ethics Committee Academic Medical Center.

• Provenance and peer review Not commissioned; externally peer reviewed.