Query Regarding To Keratoconus.

Doctors, I'm 14 Years Old. I Was Diagnosed by Myopic Astigmatism Before 1.5 Years Old. On The Recommendations Of Doctors, I'm Wearing Glass. After Wearing Glass, My Vision Get Clears And Double Vision Reduced. My Doctor Was Examined My Eye Using A Slit Lamp And Some Other Instruments But A Corneal Topography Wasn't Done Because On The Doctor's Chamber, There Was No Topography Machine. In This Cases, How Much Possibilties is Present That I Have Misdiagonsed Keratoconus As Myopic Astigmatism? My Left Eye's CYL Power is 0.50 D And Right Eye's CYL Powr is 1.25 D. I Only Have Double Vision And Blurry Vision Which Reduce After Wearing Glass. I Have No Family History Of Keratoconus & I Also Don't Rubb My Eye. How Much Possibilities I Have To Affected By Keratoconus or Misdiagnosed Keratoconus As Myopic Astigmatism? Please Keep in Mind That I Have Tested With Slit-Lamp And I Can See Clearly With Glasses. Please Give Answer Of My Question.