I am having myopia since I was 7 year old and then it was around -4.00 d cylindrical power. Now I am 19 and current power is re -5.00 -4.5 180� le -6.50 -4.5 165� my power is fairly stable since past two years. And I have also taken a corneal topography test as suggested by my doctor. What are the corrective surgical options available? And how do I know if it's astigmatism or keratoconus and treatment available for both of them. Ps: I don't want to use corrective lenses or glasses.