1.67 Index A Series LOTU TEC

Applicable range:
Myopia: -4.00D to -8.00D (medium to high)
Hyperopia: +3.00D to +7.00D (medium to high)
Astigmatism: -2.00D to -4.00D (medium to high)
Thickness characteristics: thinner than 1.61 lenses, with significantly reduced edge thickness.
Abbe number: about 32-36 (slightly higher dispersion, but still within an acceptable range).