The cause of farsightedness in older people is that theirs lenses become relatively brittle. Therefore it becomes difficult for them to focus, especially on nearby objects.
Nearsightness, farsightness, and astigmatism
Their bones naturally losing (some) strength.
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May be tumors in younger people, and menopause or andropause in older people.
Because as you grow older, your reflexes start to worn out this causes them to become slow
Older people are more likely to be conservative, while younger people tend to be less conservative. Conservative people generally dislike immigration because immigration causes change, and conservative beliefs despise change.
Aging! Getting older!
He invented the laws of planetary motion (most important), eyeglasses both for nearsightness and farsightness, and the keplerian telescope.
Nearsightness, farsightness, and astigmatism
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Young people and older people.
Nearsightness is when you can only see up close and not far away. Farsightness is when you can only see far away and not up close. =)