English, asked by mayuribarhate1954, 7 months ago

how did glass become affordable for everyone?​

Answers

Answered by Edhaliniyazh
0

Answer:

Vision test, as part of VisionSpring's efforts to reach people in remote areas who need glasses. But in developing countries, by some estimates, some two billion people don't have access to the glasses they need. They can't afford them, or optometrists are scarce, or both.

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