Product note
Light-blocking (blue-light) glasses
Useful as a light-timing tool, not as an eye-strain cure.
Price band: Budget ($), $20–$50
What it's for
- Cutting light exposure when your jet lag plan says avoid light
- Winding down before an awkwardly timed sleep window
- Dealing with a bright cabin when you need it dark
Who it's for
- Travellers actively following a light-timing plan
- Eastward flyers avoiding evening light in the first days
- Anyone who cannot sleep with a mask on but needs the light down
What to look for
- Amber or orange lenses with a stated blocking percentage
- Wrap-around or side-shielded frames, since side light matters
- Fit-over versions if you wear prescription glasses
- A hard case; these scratch easily
Honest downsides
- Evidence for reducing digital eye strain is weak
- Clear 'blue-light' lenses block very little
- Colours look strange, so not great for reading a menu
- They do nothing if you wear them at the wrong time of day
Where to buy
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