The bending of a ray or wave of light from one medium to a medium of a different density. The amount of error in the eye and the correction of that error with glasses to restore normal vision.
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Sean Childers – The path to paediatric dentistry
The American Academy of Pediatric Dentistry refers to pediatric dentists as the “big authority on little teeth,” and how true this is. The specialized...
Pass the plants, please
Diet fads have come and gone, but one of the biggest trends in recent years — a plant-based diet — is much less a...
The ABCs of vitamins
Vitamins are essential for many bodily processes, and as many cannot be made in the body, or amounts produced are not high enough, they...
