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. Author manuscript; available in PMC: 2015 Nov 18.
Published in final edited form as: Prog Retin Eye Res. 2015 Jul 15;49:46–66. doi: 10.1016/j.preteyeres.2015.07.004

Table 4.

Classification of oil droplet types based on carotenoid content.

Typea Visual appearance Always present λmax [nm] Number of carotenoids
R Red + 477 ± 2.3 1
O Orange − 425–477 1–2
Y Yellow + 435–455 1–2
P Pale yellow or greenish + 375–455 2
CJ Colorless (or pale yellow) + 375–405 1
CS Colorless (or pale yellow) − 375–405 1
TJ Transparent − None 0
TS Transparent + None 0
a

Lower case ‘j’ and ‘s’ indicate the relative size of the droplet, with ‘j’ representing the small and ‘s’ the large size. Adapted from (Goldsmith et al., 1984).