Contact lenses are prosthetic lenses used to correct vision disorders and placed on the surface of the cornea. Toric contact lenses are specially designed contact lenses primarily intended to correct astigmatism, along with myopia and hyperopia refractive errors. Astigmatism is a vision defect caused by irregular curvature of the cornea or lens of the eye and must be corrected to provide clear vision. Toric lenses correct this irregular curvature to provide clear and sharp vision.

Toric lenses are typically made of soft materials and have a special design. These lenses combine two different lenses with different optical powers and axes. This provides the different optical powers necessary to correct astigmatism.

The design of toric lenses ensures that the lens sits correctly on the eye surface. This prevents unwanted movements and rotations of the lens, providing stable vision. Additionally, maintaining the correct position of the lens ensures proper correction of astigmatism.