Do these exist for gen 5 Prius? I've had them in previous cars and enjoyed the glare reduction and improvement in situational awareness.
I don't know of specific replacement for G5 but there are plenty of add on ones that should do the trick
Toyota makes blue-tinted water-repellent mirror glass* for the gen5, but I don't think there's an OEM convex glass option. However @jtchinoy recently installed a set of mirrors that he said came from Spain(?) that I think had convex sections and maybe blue? I think he said they didn't work because the convex angles were set for a right-hand drive car. He kept the new housings for the turn signals and folding motors, but swapped in his original glass. *PN: 08169-47040 - around $80+SH from Japan As far as aftermarket options, I've got no idea on that front.
I got convex mirrors with my RHD mirrors from Japan. RHD mirrors do not look right from the left side, so I had to remove them. It was quite jarring and hurt my eyes. I used blue tint film on my US mirrors but they were pretty hazy and made it harder to see, so I eventually removed them. There are OEM blue tint mirrors in Japan, but they will probably have the same issue of not reflecting properly if you're in a LHD car. Looks like they're called "Rain Clear Blue Mirror": トヨタ純正60系プリウス適合グレード:G / Z レインクリア リングブルーミラータイプ2ディーラーオプション品 ※本文内適合条件要確認 : enzo-fascino - 通販 - Yahoo!ショッピング