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2. 10 Great Sites to Buy Cheap Eyeglasses Online - AOL

   www.aol.com/10-great-sites-buy-cheap-140036394.html

   Here are 10 affordable places to buy your next pair of cheap prescription glasses online. 1. Warby Parker. If you’re looking for a lot of choice (and the modern convenience of trying on eyeglass ...

3. Jordan Westburg is the Orioles' under-the-radar All-Star in ...

   www.aol.com/sports/jordan-westburg-orioles-under...

   It's the hardest game to play, especially at this level for a young player. So all these guys are really tough and really driven and love to play the game, and they’ve all come through [and ...

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

   www.aol.com/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 ...

5. Eye tracking - Wikipedia

   en.wikipedia.org/wiki/Eye_tracking

   Scientists track eye movements in glaucoma patients to check vision impairment while driving. Eye tracking is the process of measuring either the point of gaze (where one is looking) or the motion of an eye relative to the head. An eye tracker is a device for measuring eye positions and eye movement. Eye trackers are used in research on the ...

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. GPS tracking unit - Wikipedia

   en.wikipedia.org/wiki/GPS_tracking_unit

   A GPS tracking unit, geotracking unit, satellite tracking unit, or simply tracker is a navigation device normally on a vehicle, asset, person or animal that uses satellite navigation to determine its movement and determine its WGS84 UTM geographic position ( geotracking) to determine its location. [1] Satellite tracking devices may send special ...