Keratoconous treatment. For me!

I had detected keratoconous in my left eye with Central corneal thickness 536 and minimum corneal thickness 514 My VA is 6/9 and eyeglass number spherical -1.75 cylindrical -1.00 axis 120, Dr had asked to again repeat topography test after 3 months too comment further. What treatment would be good for me, i don't want to go with hard contact lenses, i had seen videos of Doctors online for good corneal thickness along with C3R TCAT or TPRK could be done at the same time this would reduce the irregularities in eye and after that we could get very good vision with eye glasses, i had asked this similar thing to my doctor but he said that they prefer plain c3r after that hard contact lenses for better visual acuity. I believe sceral lense are for extreme cases of keratoconous and are very expensive and i am having mild to moderate keratoconous. Please suggest what can be better procedure for me Thanks !