There are so many functional lenses currently on the market: sunglasses lenses (color changing, tinting or polarized lenses), progressive lenses, anti-fatigue lenses, blue cut lenses and anti-UV lens. Many types can be subdivided according to different functions.
- Sunglasses lenses: For sun-shadow
People usually need to adjust the pupil size to adjust the luminous flux in the sun to avoid damage to the eyes caused by strong light. Therefore, many people use sunglasses to block the sun to reduce fatigue caused by eye adjustment or damage caused by strong light stimulation.
- Progressive lens: Two types of middle-aged people and young people
Correct the vision of different distances, such as far use and near use, on the same lens to meet the needs of vision at different distances. It is suitable for people who have presbyopia but are unwilling to change glasses frequently due to the conversion of visual distance and students who have a relatively fast increase in power.
- Anti-fatigue lens: Helping the eyes reduce the adjustment power needed to look closer
According to the principle of a general progressive lens, an adjustment load of +50~+75 degrees is added to the lens to optimize the myopia luminosity to restore the micro fluctuations to normal, restore the balance of the adjustment system of the glasses, and obtain the function of fatigue-free, achieving a thorough eye “stress reliever”.
- Blue cut and anti-UV lens: Blue light can cause chronic damage to the retina and cause fundus macular degeneration.
Through all the above, we can find that the current lenses have many functions, we should choose one or more suitable lenses according to our life and work needs, so as to fully protect our eyes!