Toric contact lenses are made specifically for those who have astigmatism. A little flaw that may be seen on the cornea of the eye's surface is known as astigmatism. Astigmatism causes a minor bend on the cornea or lens region, necessitating the use of lenses specially crafted to accommodate this shape and be more pleasant to wear. Toric lenses are constructed differently from normal lenses; although standard lenses are shaped in a more spherical shape, similar to a tennis ball, with their sides totally uniformly curled, toric lenses are structured similarly to a doughnut, with a tiny bend on the sides. As a result of the astigmatism caused by this curvature, the lens may rest exactly on the curved portion of the cornea. Toric lenses can be manufactured of a variety of materials, including silicone hydrogel and hydrogel, which are more breathable than hydrogel and less likely to cause hypoxia or redness. Toric lenses are also available in soft variants. Although it may seem that hard lenses will be less comfortable than soft lenses when wearing toric lenses, doctors actually advise choosing hard lenses for those who intend to wear lenses for an extended period of time because they are more breathable and allow oxygen to pass through the lens and into your eye