I Have Vertically Large Eyes but Horizontlly They Are Really Small Can a Surgery Help Me Lengthen my Eye Horizontally?

It may very well be that eyelid surgery to change the shape of your eyes might be helpful.  However you diagnosis many or may not be correct.  Also it is critically important that your potential surgeon truly understands you concerns.

It may or may not be possible, depending on your exact anatomy, age, ethnicity.  A photo would be useful.  Consult an oculoplastic surgeon.

It is possible do lengthen the eyelid aperture horizontally via a canthopexy/canthoplasty procedure, but you should understand that the end result may not look very natural. Those procedures work best in a reconstructive setting, but if done for aesthetic reasons like you propose, you may end up quite unhappy. And it will be a situation were reversal may be near impossible.

 

Think twice about this surgery, but if you'd like to post a photo, we can give you a more accurate recommendation.

A picture would be very helpful as there are a few congenital problems that cause this eyelid shape, otherwise it is likely just your genes.  A lateral canthoplasty can be used to adjust the outside corner of the eyelids, changing their position or moving them out slightly. This is very dependent on your particular anatomy, so a consultation with an oculoplastic surgeon is a must.