Answer: lens; retina
In myopia<span>, close objects look clear but distant objects appear blurred. Hyperopia is the reverse of myopia. Here you can see distant objects clearly, but have difficulty focusing on objects that are near. People have myopia (nearsightedness) and hyperopia )farsightedness) because the distance between their lens and their retina is either too short or too long.</span>
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This information is Quantitative data
I would say true. I say this because there have been times where scientists find out that there are better ways of performing experiments, or found that certain materials work better for certain tasks. (Especially true in medicinal fields!)
