“Filling-In” and Afterimages

References 

1. Goethe W: Theory of Colours. Eastlake, CL, translator. Boston, MIT Press, 1970. Original work published 1840
2. Personal communication 1995–1999: Abramson NH, Professor Emeritus, Dept. of Materials Processing, Industrial Metrology, Royal Institute of Technology, Stockholm, Sweden
3. Personal communication 1995: Krakau CET, Professor Emeritus of Ophthalmology, University Eye Clinic, Malmö, Sweden
4. Personal communication 1995: Tengroth B, Professor Emeritus of Ophthalmology, Karolinska Institutet, Stockholm, Sweden
5. Scheiner C: Oculus 1619, quoted in Duke-Elder SS: System of Ophthalmology, Vol II, London, Henry Kimpton, 1961, pp 38,40