Age 28, how to fix gap between my eyes & nose fast & fill in the blank? (Photo)

The contour irregularity is probably treatable using fillers. Permanent long-term options are probably more involved, but could involve the placement of a small cartilage graft.
It would be important to know if you wear glasses and if the frame of the glasses put pressure in this area.
Consult with a few plastic surgeons in your community.
Best,
Mats Hagstrom MD