Yes, you can. Both the outer corner of the eye and the inner corner of the eye are ok. You don't need to open both the inside and outside corners. Choose according to your own situation.

The effect of opening the inner corner of the eye: narrowing the eye distance, improving the face shape, improving the shape of the starting point and the inner side of the double eyelids, beautifying the double eyelids, increasing the lateral span of the eyes, making the eyes look longer with the double eyelids, expanding the vision of the eyes, improving the visual angle and relieving the accumulation of eye secretions in the lacrimal fossa.

Disadvantages of opening the inner corner of the eye: there will be scars, but it is not obvious, because there are often more eyelashes on the inner side of the eyelid, and it is more difficult to see the scars in shape, and it is easier to be covered by the folds of the double eyelids.

In principle, the operation of the outer corner of the eye will destroy the special structure of the outer corner of the eye, which is difficult to recover.