What is the difference between 1.50 and 1.61 lenses?
What is the difference between 1.50 and 1.61 lenses?
The 1.61 are 20% thinner than 1.50 Standard and are recommended for full-rim or semi-rimless frames. These work well for prescriptions above +4.00 or below -4.00.
What does 1.57 index lenses mean?
The 1.57 mid index lenses are meant for people with moderately strong prescriptions, and they are thinner and lighter than standard lenses. The lens is a polycarbonate composite made from polycarbonate, other polymers, and resins that keep it thinner and lighter than the standard 1.50 lens.2021-02-24
Do high index lenses make a difference?
For traditional glass lenses, the refractive index is about 1.53. ... That means that lenses with a higher refraction index can be slimmer and lighter, which is why the superior light-bending abilities of high index lenses make them ideal for eyeglass wearers who require a stronger prescription to correct their vision.2020-09-08
Do thinner lenses make a difference?
With a thinner material in most cases wearers do not notice a difference. But this is highly dependent on how sensitive the wearer is. In some cases the wearer can spot the difference between a thinner lens and a standard lens material which is thicker.
Is the a big difference between 1.57 and 1.61 index lenses?
The main difference between 1.57 and 1.61 index lenses is the thickness of the lens material. ... For example, if the lens power is approximately -2.00, it may be more suitable to opt for 1.56 index lenses.
What is the difference between 1.56 and 1.61 lenses?
What is the Difference Between 1.57 and 1.61 Index Lenses? The main difference between 1.57 and 1.61 index lenses is the thickness of the lens material. ... For example, if the lens power is approximately -2.00, it may be more suitable to opt for 1.56 index lenses. The thickness is around 3mm.