Zenni prescription sunglasses

[KLAIT]

I am going to order a pair of prescription sunglasses from Zenni Optical. I have the frames picked out, but am at a bit of a loss when it comes to the tint. There is amber with different gradients. I am not sure what the difference is. I am assuming the amber is with the brown tint?

Thanks!

 

[nephthys43]

The gradient depends on how dark you want them and if you want a solid dark or if you want the tint to lighten up towards the bottom