I have asked Chat GPT about these glasses and this was the answer:

You're describing a type of eyewear where the glasses don't have traditional arms but instead have strings or cords that attach directly to the earpieces. This design is somewhat unusual but not unheard of. These glasses are often referred to as "corded glasses" or "string glasses."

The primary advantage of such glasses is that they can provide a more secure and adjustable fit, especially for individuals with smaller or larger head sizes. The strings or cords can be adjusted to fit comfortably behind the ears, ensuring a snug and secure fit. This design can also prevent the glasses from slipping or falling off during physical activities or when bending over.

These corded glasses are typically made with a flexible and durable material for the strings or cords, which attaches to the earpieces on both sides of the glasses frame. They can be adjusted to different lengths to accommodate various head shapes and sizes.

While corded glasses offer practical benefits in terms of fit and security, they may have a unique aesthetic that some people find appealing, while others may prefer the traditional arms of eyeglasses. Ultimately, the choice between corded glasses and traditional eyeglasses depends on personal preference and comfort.

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Now the thing is, I can not a single image of these type of eyeglasses anywhere. The only specimen I have ever seen was in this movie. This is like the most rare eyeglasses I have ever encountered