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1.56 Progressive Blue Cut Optical Lenses with Green Coating | High-Definition Vision by China Suppliers and Factory
Historical Background
Progressive lenses are developed on the basis of bifocal lenses. The use rate in Europe and the United States is relatively high, and the time of matching in China is nearly 10 years. The progressive piece is in the transition of the upper and lower two focal lengths, the use of polishing technology, the gradual transition between the two focal lengths, that is, the so-called gradual, it can be said that the progressive lens is a multi-focal length lens.
When the wearer observes far/near objects, in addition to not having to remove the glasses, the movement of sight between the upper and lower focal lengths is also progressive, there is no dual-focal length when the eye must constantly adjust the focal length fatigue, and there is no obvious dividing line between the two focal lengths. The disadvantage is that there are different degrees of interference areas on both sides of the progressive film, which will cause the peripheral visual field to produce swimming motion.
Characteristic
1.56 Main features of progressive anti-blue lens:
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1.56 Refractive IndexSuitable for mild to moderate myopia or farsightedness patients, the lens is relatively thin and lightweight.
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Progressive DesignProvides different degrees from top to bottom, suitable for presbyopia patients, and can see far, middle and near objects at the same time, without frequent replacement of glasses.
The lens has an anti-blue light coating, which can effectively filter the harmful blue light emitted by electronic devices, reduce eye fatigue and dryness, and protect the retina.
Applicable population
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People who use electronic devices for a long timeSuch as office workers, students, etc. who require prolonged screen exposure.
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PresbyopiaPeople who need to correct both farsightedness and nearsightedness simultaneously.
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Eye health consciousPeople who want to reduce the damage blue light does to their eyes.
Advantage and Precautions
Advantage:
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Versatile: corrects vision and protects blue light at the same time.
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Convenience: Progressive design eliminates the need for frequent mirror changes.
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Comfort: reduce the fatigue of the eyes for a long time.
Matters needing attention:
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Adjustment period: The first use of progressive lenses may take time to get used to.
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Professional optometry: It is recommended to take optometry in a professional institution to ensure the accuracy of the degree.
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Lens care: Clean regularly to maintain anti-blue light effect.
Progressive lenses are a powerful and beautiful vision tool for people who need multi-focal correction.
Frequently Asked Questions
What are progressive lenses?
Progressive lenses are multi-focal lenses designed with a gradual transition between the upper and lower focal lengths. They allow the wearer to view far, intermediate, and near objects seamlessly without visible dividing lines.
What are the benefits of the 1.56 refractive index in these lenses?
The 1.56 refractive index makes the lenses relatively thin and lightweight, making them highly suitable and comfortable for patients with mild to moderate myopia or farsightedness.
How does the anti-blue light coating protect my eyes?
The anti-blue light coating filters harmful blue light emitted by digital screens (computers, phones, etc.), which helps reduce eye fatigue, prevent dryness, and protect the retina from potential long-term damage.
Why is there an adjustment period for progressive lenses?
Because progressive lenses transition smoothly from upper to lower focal lengths, there are minor interference zones on the outer edges. First-time wearers may experience slight swimming motions in their peripheral vision, requiring a short adjustment period to get used to the lens design.
How should I care for my progressive anti-blue light lenses?
To maintain the effectiveness of the anti-blue light coating, you should clean the lenses regularly using professional lens cleaning solutions and microfiber cloths. Avoid using harsh chemicals or abrasive materials that could scratch the coating.