Examlex
About 2 percent of the mass of the Sun is in elements heavier than helium.Where did these elements come from?
Presbyopia
A condition associated with aging in which the eye's lens loses its ability to focus, making it hard to see objects up close.
Glaucoma
A group of eye conditions that damage the optic nerve, often due to abnormally high pressure in the eye, leading to vision loss or blindness.
Retinopathy
A medical condition where damage occurs to the retina of the eye, which can impair vision.
Bone Loss
The reduction in bone density and mass, often associated with aging or certain medical conditions, leading to weakened bones.
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