No, astigmatism is not the same as keratoconus. Astigmatism is a common refractive error caused by an irregular shape of the cornea or lens, leading to blurred or distorted vision. On the other hand, Keratoconus is a progressive eye disorder characterized by the thinning and bulging of the cornea. This creates corneal distortion and results in irregular astigmatism. All individuals with keratoconus have astigmatism, but not everyone with astigmatism has keratoconus. While both affect vision, they are distinct conditions with different causes and characteristics.