Robuta

https://herseninstituut.nl/publicaties/a-history-of-visual-acuity-testing-and-optotypes/ A history of visual acuity testing and optotypes - Nederlands Herseninstituut - KNAW | Master the... a history of visual acuity testing https://research.lu.lv/en/publications/blur-adaptation-with-snellen-e-and-landolt-c-optotypes/ Blur adaptation with Snellen E and Landolt C optotypes - University of Latvia