MsPaperLove
1 Answer
MikeIke
Presbyiopia is a condition when the eye's ability to focus on near objects is getting worse as getting older. It's not known for sure, but researches found that it happens because the elasticity of the crystalline lens.
You can read more here:
http://en.wikipedia.org/wiki/Presbyopia
| 12 years ago. Rating: 2 | |
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