1, Shang Dynasty: Jade bears have round eyes, bulging eyes and slightly drooping eyelids, giving people a gentle and serene feeling.

2. Western Zhou Dynasty: Jade Bear's eyes began to become more vivid, with three-dimensional eyes and more obvious eyelids, giving people a sense of agility and mystery.

3. During the Spring and Autumn Period and the Warring States Period, Jade Bear's eyes became exaggerated and dazzling, with more prominent eyes and drooping eyelids, giving people a strong and fierce feeling.

4. Han dynasty: the bear's eyes began to become more delicate, the eyes were more real, and the eyelids were more delicate, giving people a delicate and delicate feeling.

5. Tang Dynasty: Jade Bear's eyes became elegant and graceful, with round eyes and slender eyelids, giving people an elegant and noble feeling.

6. In the Ming and Qing Dynasties, the jade bear's eyes became delicate, the eyes were more three-dimensional and the eyelids were more delicate, giving people a feeling of prosperity.