For people always wear eyeglasses, choosing the right fit is essential for comfort, protection, and even optical performance. You may heard some terms like "European Fit" and "Asian Fit". In fact, thy are just simple description that the eyeglasses are designed to fit European or Asian facial features and anatomy, So, asian fit glasses are made to fit Asian facial featured people.
Asian fit glasses mean that they are designed to fit Asian facial features. If you are a Asian, then these asian fit glasses can fit you properly. Asian have a lower nose bridge and higher cheekbones, so they need glasses that can fit their facial features for their higher cheekbones and lower nose bridges. And they find glasses on the market will sit high on their nose and will always slide down their noses, which make them uncomfortable. However, asian fit glasses can be made to fit them exactly.
Asian fit glasses are a kind of glasses that are designed to fit Asian facial features. Some Asians may feel difficult to find a pair of suitable glasses in west countries for their special face shape. Generally speaking, asian fit glasses fit these who have a lower nose bridge and higher cheekbones. It does not matter whether you are a Asian or not. In my point of view, it is just a label of the glasses. You may also hear some terms like European Fit.