Bruenech, Jan Richard, Inga-Britt Kjellevold Haugen, Ulla Bak, Marianne Maagaard, and Frans VanderWerf. 2012. “The Oculomotor Systems Ability to Adapt to Structural Changes Caused by the Process of Senescence: A Review”. Scandinavian Journal of Optometry and Visual Science 5 (1):1-14. https://doi.org/10.5384/sjovs.vol5i1p1-14.