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==Red light== ...erefore, red light might cause significant eye strain, but is the clearest light for myopic users.

...l. The optics of an ''idealised'' lens of such a form would cause incoming light on different planes (corresponding to the two principal axes of the lens) t ...'Saggital') are focused further behind, at 'S'. The other rays around the light cone are focused at points in between the two, giving an image smeared out

* Exposure to red light early in the day has shown promise in improving vision in adults 40+ years ...rnoon, prior to sunset. Ideally without [[sunglasses]], but don't look at light so bright that you need to squint.

* '''Pupil''' - the hole where light enters the eye ...- Rods and Cones are the sensory cells in the back of your eye that detect light.

Sunglasses protect your eyes by filtering light from the sun. There are times when sunglasses are needed (like skiing). Bec ...less UV protection from their pupils, as their pupils don't block as much light.

...opia utna hi zyaada darr lattice degeneration ka (jiska lakshan hai bright light spots, ya “floaters” – ek bura sanket), retinal detachment, macular d ...in par bhi). Ek recent study ne safalta ke saath amnesia reverse kiya blue light ka prayog karke (aap isse website ke science section pe paa sakte hain). Aa