| SCN | Suprachiasmatic nucleus |
| RHT | Retinohypothalamic tract |
| ipRGCs | Intrinsically photosensitive retinal ganglion cells |
| NIF | Non-image-forming |
| PLR | Pupillary light reflex |
| CIE | Commission International de l’Eclairage |
| mEDI | Melanopic equivalent daylight (D65) illuminance |
| EML | Equivalent melanopic lux |
| CLA | Circadian Light |
| CS | Circadian stimulus |
| SPD | Spectral power distribution |
| FWHM | Full width at half maximum |
| CSd | Circadian light dose |
| SE | Standard error |
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