Translation guide
In Japanese, 'sunglasses' is most commonly expressed with the loanword サングラス. There are also native terms and descriptive phrases, but サングラス is the default in everyday conversation.
Refer to sunglasses as an accessory or item in daily life.
The most common and neutral word for sunglasses. Used in all contexts.
I bought new sunglasses.
Sunglasses are essential in summer.
Slang abbreviation of サングラス. Common in casual speech, especially among younger people.
That person is wearing shades.
Literally 'black glasses'. An older term, now rare. May sound old-fashioned or literary.
He was wearing dark glasses.
Describe glasses that are tinted or dark, not necessarily as a fashion item.
Emphasize the protective function against sunlight.
Literally 'sunshade glasses'. Rarely used in modern conversation; may appear in product descriptions.
Do you have sun protection glasses?
サングラス is a loanword and behaves like a regular noun. Use をかける (to put on/wear) or をする (to wear) for wearing sunglasses. をかける is more common for glasses.
to put on/wear sunglasses
is wearing sunglasses
The direct translation 太陽眼鏡 (たいようめがね) is not used in Japanese. Stick with サングラス.
I always wear sunglasses when I drive.
Those sunglasses look cool.
Please wear dark glasses after the surgery.