World of Glasses

    Denver Blue Blocker Sun Readers

    £13.99

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    • UV Protected Lenses BS EN ISO 12312-1:2013
    •  Filter Category 2 (Blue Blocker)
    • Polycarbonate Frame
    • Fully Sprung Hinges for Comfort and Durability
    • Moulded Nose piece
    • Scratch-resistant acrylic lenses
    • Available in +1.50 to +3.0 strengths in .50 increments
    • Available in Black
    • Unisex
    • Tested to BS EN 14139:2010

    These Yellow Lens Blue Blocker Sun readers block high amounts of blue light to heighten contrast and visual acuity. Sometimes called “Blue Blockers” they are particularly useful to improve contrast on grass and against blue skies.

    £13.99
    Strength +1.50 +2.00 +2.50 +3.00
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    Product Description

    • UV Protected Lenses BS EN ISO 12312-1:2013
    •  Filter Category 2 (Blue Blocker)
    • Polycarbonate Frame
    • Fully Sprung Hinges for Comfort and Durability
    • Moulded Nose piece
    • Scratch-resistant acrylic lenses
    • Available in +1.50 to +3.0 strengths in .50 increments
    • Available in Black
    • Unisex
    • Tested to BS EN 14139:2010

    These Yellow Lens Blue Blocker Sun readers block high amounts of blue light to heighten contrast and visual acuity. Sometimes called “Blue Blockers” they are particularly useful to improve contrast on grass and against blue skies.

    They are excellent for Sports too : baseball, cycling, fishing (especially in waters with grassy bottoms), golf, hunting, skiing, water sports.

    Sunlight contains red, orange, yellow, green and blue light rays and many shades of each of these colors, depending on the energy and wavelength of the individual rays (also called electromagnetic radiation). Combined, this spectrum of colored light rays creates what we call “white light” or sunlight.

    Without getting into complicated physics, there is an inverse relationship between the wavelength of light rays and the amount of energy they contain. Light rays that have relatively long wavelengths contain less energy, and those with short wavelengths have more energy. Rays on the red end of the visible light spectrum have longer wavelengths and, therefore, less energy. Rays on the blue end of the spectrum have shorter wavelengths and more energy. The electromagnetic rays just beyond the red end of the visible light spectrum are called infrared — they are warming, but invisible. (The “warming lamps” you see keeping food warm at your local eatery emit infrared radiation. But these lamps also emit visible red light so people know they are on! The same is true for other types of heat lamps.) On the other end of the visible light spectrum, blue light rays with the shortest wavelengths (and highest energy) are sometimes called blue-violet or violet light. This is why the invisible electromagnetic rays just beyond the visible light spectrum are called ultraviolet (UV) radiation.

    Additional Information

    Strength

    +1.50, +2.00, +2.50, +3.00

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    Complete the collection

      • Fit: Small to Large
      • Rubber Non Slip Ends
      • Fits Children and Adults
      • Keeps Glasses in Place During Activity
      • Available in Black Only
      • Unisex

      The original Gorilla Grip Glasses Cord is now available at World of Glasses. This beauty will keep even the most active of people’s glasses secure.

      • Fit: Standard Glasses and Sunglasses
      • Snap Top Opening
      • Plush Lining and Outer
      • Lovely Colours
      • 165mm x 85mm

      Snap Top Glasses Pouch.  If you own glasses, you should own one of these.  Press outer edges to open and release to snap shut.  These lovely cases are great for handbags, pockets and the car.  Thinking outside the box use them for smartphones and data devices.  It keeps them safe, secure and easy to get to.

       

    • Fit the rubber ends to your glasses and adjust to fit around your head.  Perfect for adults and children alike this will keep your glasses stable whilst doing any high impact activity or sport.