There is actually quite a bit that can be done to change the shape of the face, and make the eyes look further apart, even though the interpupillary distance (IPD) stays the same. You are also correct in stating that surgical repositioning of your eyes is not something that would be done on a healthy adult. There are conservative options that can be found by altering make-up or wearing glasses with certain types of frames, and an ophthalmologist
or even an optometrist
might have suggestions in that regard. Assuming that you have already considered those options, the next best step would be to make an appointment with a plastic surgeon
or head and neck surgeon who specializes in cosmetic surgery. Obviously, specific recommendations would require a personal physical examination, measurements, and, usually, photography. Depending on the structure of your face and your specific circumstances, he or she would be able to recommend altering the nose, the eyelids, or the surrounding soft tissue of the face. Of especial value, a surgeon would be able to help you in understanding the benefits and limitations of cosmetic surgery, and would help you to have realistic expectations before you decided to move forward. There is a broad range of variation within the normal population, and seeking multiple professional opinions before choosing elective surgery would also be in your best interest in addressing such a complex question.