The appropriate shade is chosen according to the light you will actually be catching. Look out through the lenses, not under heavy store lighting, and track how the water surface, the shore and the tip of the fishing rod are visible. Amber and Green will give different color perception; look for the option where details remain readable and eyes do not strain.
After the color, check the fit. The frame should not be lowered when bent, pressing on the temples or resting on the eyelashes. Put on the hat you use to fish and turn your head in both directions; that way you will know if the combination remains comfortable and stable. A light variant is a plus only if the specific shape fits your face.
Polarization and UV protection are not the same property. The first one reduces the reflected shine, and the second one is checked by the specified characteristic of the model. Don't take the color of the lens as evidence of any of them. This distinction is especially useful when comparing glasses from different product groups.
After the outing, remove the dust, water drops and oily traces in a way that does not scratch the lenses. Don't leave them face down or press them between hard accessories. Before next wearing, look for scratches right in the field of view and check the frame assemblies if they are accessible without forcing them.
Choosing glasses is easier when you associate it with the fishing you practice most often. From All products you can go back to the other groups, then through Carp fishing goggles to consider the carp context, and in Feeder Fishing Glasses to continue the comparison from a feeder point of view.