Aviator and browline
Ray-Ban RB3025 L0205 has an arista gold frame and G-15 green non-polarized lenses. Its open double bridge looks different from the heavier upper rim of the black-on-gold Clubmaster W0365. If you like the thinner outline, check how the nose pads sit rather than choosing by the word aviator alone.
A square rim need not have sharp corners
The black Persol 649 has a substantial curved rim around green lenses. The Havana Persol PO3019S has a rounded square outline and visible arrow details at the temples. Compare the top line and the lower corners. Both can look quite different from a thin round metal frame even when the lens color is similar.
Use the bridge and temples as separate checks
The Original Wayfarer 901 size 50 has a 22 mm bridge and 150 mm temples. The New Wayfarer 901/58 size 52 has an 18 mm bridge and 145 mm temples. The smaller bridge number is not proof that the second pair will fit your nose better. Compare the shape of the bridge and how the arms rest as well as the measurements.
Choose the lens for the task
Polarization can reduce reflected glare, but the American Academy of Ophthalmology warns that some LCD displays can be harder to read through it. Check the screens you use and verify UV protection separately. Neither a dark lens nor a familiar frame name tells you that a lens is polarized.
