Question

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university of utah engineers have developed \smart glasses\ designed to act like the eyes natural lens. some people struggle to focus on things close up, far away, and in between. as a result, they may wear different glasses to see at different distances. the smart glasses have liquid - based lenses that respond by flexing and bending to focus on whatever the wearer is looking at. the trouble is people move their eyes very quickly as they look at different things. the glasses address this by adjusting even faster than the eyes natural lens refocuses. the glasses change shape to refocus in fourteen milliseconds! normally, glasses wearers would have to buy a new pair as their eyesight changes over time. since smart glasses automatically adjust to wearers eyesight, people would only need one pair. match the problems with their solutions. peoples eyesight changes. people move their eyes continually. people have to focus at multiple distances. problem solution the lenses can flex and bend. the glasses can focus in fourteen milliseconds

Explanation:

• For "People have to focus at multiple distances": The text mentions that the smart glasses have liquid - based lenses that flex and bend to focus on different things (which implies different distances).
• For "People move their eyes continually": The glasses adjust even faster than the eye's natural lens refocuses and can refocus in fourteen milliseconds.
• For "People's eyesight changes": Since smart glasses automatically adjust to wearers' eyesight, people would only need one pair.

Answer:

• Problem: People have to focus at multiple distances. Solution: The lenses can flex and bend.
• Problem: People move their eyes continually. Solution: The glasses can focus in fourteen milliseconds.
• Problem: People's eyesight changes. Solution: Smart glasses automatically adjust to wearers' eyesight (so only one pair is needed).