But how can we choose a pair of high refractive index lenses that really suit us?
When facing a lens with the same refractive index of 1.60,Choose MR-8 () or acrylic?
First of all, acrylic lens, because of its low toughness, when the metal ball falls on top of it, the edge is prone to cracks, but when the metal ball falls on the MR-8 * material lens, it is not damaged at all. Attention should be paid to this point, if you wear eyewears.com/Rimless-eyewears.com/optical-frame.html target='_blank'>optical-frame.html target='_blank'>Rimless or half-rimmed eyewears.com/ target='_blank'>glasses, if you choose acrylic lenses, there will be a risk of lens edge gap, edge collapse, fragmentation after falling to the ground, and MR-8 # lenses with excellent toughness, there is no need to worry about this risk.
Therefore, when choosing lenses, we need to choose lenses with good visual quality, that is, lenses with high Abbe number.
Safety is also a factor to consider when purchasing lenses. MR-8 lenses and acrylic lenses look very similar in appearance, but the material structure is very different, leading to safety differences.
At the same time, when the load is concentrated on the two types of lenses, the acrylic lenses are prone to explosive rupture. MR-8''lenses did not crack. It's just that the lenses are concave and stick to the floor. When the high-heeled shoes step on the two, the acrylic lenses split instantly, while the MR-8''lenses do not.