Understand the difference between bifocal and progressive.
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Multi Focus Progressive Multifocal Reading Glasses for Men and Women Lightweight Blue Light Blocking Computer 3 Powers in 1 No Line Readers UV Protection Eyeglasses Anti Glare Eye Strain Eyewear : Amazon.co.uk:
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The Eye Place NG - PROGRESSIVE LENSES vs BIFOCAL LENSES Some people need glasses for distance vision as well as reading. Also, nearly EVERYONE will need either reading glasses later in life (