location in the centre of the retina that contains a photostable pigment
Note 1 to entry: The location includes the fovea and appears yellow in colour.
Note 2 to entry: See also "fovea".
Note 3 to entry: This entry was numbered 845-02-04 in IEC 60050-845:1987.
Note 4 to entry: This entry was numbered 17-747 and 17-1446 in CIE S 017:2011.