POST LASIK QUERY. Normal range of k max?

I had steep corneas post LASIK. K max values were 48 and 46.2. Doctors examined me for 4 months but my K max values didn't increase . They examined my corneal topography and said they were normal, I had naturally steep corneas. My pre op central corneal thickness was 580+ both eyes. I had moderate myopia along with moderate astigmatism ( astigmatism of 2.75 D in OD and 2.5 D In OS). 4 weeks ago , I was operated for femto LASIK My vision now is fine. I was tested 6/6 both eyes although slight fluctuations in vision are still there, especially with one eye closed ( seeing with right eye ) My RSBT was 390 OD and 350 OS Present CCT is 490 OD and 461 OS Post op K max was 44.9 OD and 44.3 OS My questions are 1. Do high astigmatism causes keratoconus ? 2. Will I developme keratoconus now after 4 weeks of LASIK as I had steep corneas ? 3. Do doctors detect keratoconus already in pre LASIK tests? 4. What  is the normal range of K max?