S-cones (which respond to short wavelengths) are very few in the fovea center
so causing a so-called S-cone blind spot
(Williams et al., 1981)
but they peak in number on the foveal slope at about 12% of the population
https://www.ncbi.nlm.nih.gov/books/NBK11515/
from my link log —
Kill It With Fire: dealing with legacy systems. (book review)
https://www.usenix.org/publications/loginonline/kill-it-fire
saved 2021-09-09