Multifocal Contact Lenses
330 ViewsMultifocal lenses are designed to provide different powers of vision at different distances. How exactly do they work, and…
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Healthy food: how to eat a balanced diet?
504 ViewsApart from breast milk, no food brings together all the nutrients necessary for the functioning of the body: proteins…
Contact lenses: advantages and disadvantages of invisible visual aids
407 ViewsChoosing between visible and invisible visual aids is not just a matter of style. Like glasses, contact lenses have…