Name: Multifocal 1.56 HMC Blue Light Blocking Photochromic Progressive Lens
Brand: Crystal Optical Co.,Ltd.
Price: 20 USD
Rating: 4.4 (5 reviews)

Multifocal 1.56 HMC Blue Light Blocking Photochromic Progressive Lens

Progressive lens will automatically change color when the light changes, from transparent to colored lenses, thereby reducing the damage of harmful light such as ultraviolet and blue light. At the same time, the design of the 1.56 progressive lens makes the lens degree gradually change from top to bottom, adapts to the visual needs from long distance to close distance, provides a clear visual experience.

Features of Multifocal 1.56 HMC Blue Light Blocking Photochromic Progressive Lens

Progressive photochromic lenses not only have the functions of nearsightedness and presbyopia glasses, but also can automatically change color according to the intensity of environmental light, protecting the eyes from ultraviolet rays. These lenses usually offer a wide field of vision and can reduce the astigmatic area, making the view clearer. It also blocks harmful blue light.

Specification of Multifocal 1.56 HMC Blue Light Blocking Photochromic Progressive Lens

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Index	1.523
Material	photochromic
Diameter	65/70mm
Power Range	SPH -6.00~ +6.00
ADD	0~ +3.00
Abbe Value	37.8
Coating	HC/HMC/SHMC
Design	Progressive
Photo Colour	Grey/Brown

Advantages of Multifocal 1.56 HMC Blue Light Blocking Photochromic Progressive Lens

Lens type: There are two main types of color-changing lenses: photochromic and spin coating. In the lens raw materials to add color factor, there will be a background color, the thicker the lens, the deeper the background color, the more obvious the color change effect. spin coating lenses add a layer of color change on the surface of the lens, no background color, fast and stable color change.
Discoloration speed and depth: The faster the discoloration speed, the better, indicating that the discoloration factor is active and the protection time is longer. The depth of discoloration corresponds to the level of UV protection, and dark lenses are more suitable for high UV areas. Fast fading lenses are suitable for the fast pace of life.
Lens appearance: choose evenly dyed lenses, the uniformity of lens appearance directly affects the comfort and visual effect.
Application scenario: Choose the right lens according to your own eye scene and habit. For example, if you have a lot of close eye use, you can choose a lens with more close area design; If you often spend time outdoors, it is more appropriate to choose lenses with fast color change and dark color.