We have published in eLife:

Dehmelt F. A., Meier R., Hinz J., Yoshimatsu T., Simacek C. A., Huang R., Wang K., Baden T., Arrenberg A. B.
Spherical arena reveals optokinetic response tuning to stimulus location, size, and frequency across entire visual field of larval zebrafish
eLife, accepted manuscript 2021 Jun 08, full online edition to follow