Slanted vision. I am not sure what you mean by that. Did the doctor say you have astigmatism and would require cylindrical lens??Astigmatism is a disorder of the eyes that can cause light to focus on two points instead of just one. This condition can be the result of a misshapen cornea or lens or retina. Astigmatism causes people to have blurry, slanted or distorted vision.
Is this what you meant?
Next Steps
if you have such a vision,you need to see an ophthalmologist and check refraction