1）The Benefits of Blue Cut Lenses      Blue Cut Lenses is to block and protect your eyes from high energy blue light exposure. Blue cut lens effectively blocks 100% UV and 40% of the blue light, reduces the incidence of retinopathy and provides improved visual performance and eye protection, allowing wearers to enjoy the added benefit of clearer and sharper vision, without altering or distorting color perception.2）The Benefits of PC Lens ● High impact material is safer to the energetic children Perfect protection to the eyes ● Thin thickness, lightweight, light burden to children's nose bridge ● Suitable to all groups, especially the children and sportsmen ● Light and thin edge offer aesthetical appeal ● Suitable for all kinds of frames, especially rimless and half-rimless frames ● Block harmful UV lights and solar rays ● Good choice to those who do a lot of outdoor activities ● Good choice to those who love sports ● Break resistant and high-impact3. What is the difference between HC, HMC and SHC？

Hard coating	AR coating/Hard multi coating	Super hydrophobic coating
makes the uncoated lens hard and increases the abrasion resistance	increases the transmittance of the lens and reduces surface reflections	makes the lens waterproof, antistatic, anti slip and oil resistance

1.59 PC Progressive blue cut lens
Model:	1.59 PC lens
Place of Origin:	Jiangsu, China
Brand:	SETO
Lenses Material:	Polycarbonate
Lenses Color	Clear
Function	Progressive&Blue Block
Refractive Index:	1.59
Diameter:	70 mm
Abbe Value:	32
Specific Gravity:	1.21
Transmittance:	>97%
Coating Choice:	HMC/SHMC
Coating color	Green
Power Range:	Sph: -2.00~+3.00  Add: +1.00~+3.00