LEDs may cause retinal toxicity at occupational domestic illuminance
Some immediate thoughts:1.  6000 lux is a _lot_ of light.2.  The LEDs tested are not the "warm white" (1500-2500K) commonly used as replacements for incandescent bulbs in the US.  They're the "blue white" (>4000K) ones, or pure blue or pure green at specific wavelengths.With those constraints, it's an interesting result.  It does not mean you need to run home and rip all the lights out, though.