One of the methods is Prescription glasses + Clip on sunglasses (plano lens) for people with myopia.
Note: The selected clip on sunglasses should cover the entire myopia lens.
Advantages: affordable and easy to use. When you don't use it, put the clip on sunglasses in the storage box on the car, it will not take up too much storage space.
Disadvantages: The style of the clip on sunglasses doesn’t have much choice and does not necessarily match the wearer's original prescription glasses.
Suit for people: Do not care about the external beauty, and occasionally need to block the sunshine.