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2. Adjustable-focus eyeglasses - Wikipedia

   en.wikipedia.org/wiki/Adjustable-focus_eyeglasses

   Adjustable focus eyeglasses are eyeglasses with an adjustable focal length. They compensate for refractive errors (such as presbyopia) by providing variable focusing, allowing users to adjust them for desired distance or prescription, or both. Current bifocals and progressive lenses are static, in that the user has to change their eye position ...

3. How to be a safer driver after 65 - AOL

   www.aol.com/lifestyle/safer-driver-65-154500027.html

   Challenge #2: Vision issues. As you get older, your eyesight can change. Maybe it’s more difficult to read traffic signs or see clearly at night. It might take you longer to react to things that ...

4. 5 signs that US retirees are richer than they think - AOL

   www.aol.com/finance/5-signs-us-retirees-richer...

   Here's how. But many may be in a stronger financial position than they realize. Here are a few signs that American retirees may be richer than they think. 1. Minimal debt. It's not unusual for ...

5. Progressive lens - Wikipedia

   en.wikipedia.org/wiki/Progressive_lens

   Progressive lenses are corrective lenses used in eyeglasses to correct presbyopia and other disorders of accommodation. They are characterised by a gradient of increasing lens power, added to the wearer's correction for the other refractive errors. The gradient starts at the wearer's distance prescription at the top of the lens and reaches a ...

6. Prism correction - Wikipedia

   en.wikipedia.org/wiki/Prism_correction

   Prism dioptres. Prism correction is commonly specified in prism dioptres, a unit of angular measurement that is loosely related to the dioptre. Prism dioptres are represented by the Greek symbol delta (Δ) in superscript. A prism of power 1 Δ would produce 1 unit of displacement for an object held 100 units from the prism. [2]

7. The 3 Biggest Barriers to Retirement Savings and How to ... - AOL

   www.aol.com/3-biggest-barriers-retirement...

   Below, we'll look at some of the biggest retirement savings barriers according to a recent Goldman Sachs survey, and how you may overcome them. Two people, with one holding a calculator, looking ...