In ophthalmology, cylindrical lenses are primary tools for correcting astigmatic vision, typically caused by corneal deformation. By adjusting the focal point of one axis to overlap with another, these lenses restore clear vision.

Used to capture 3D shapes into digital copies, this technique is vital for manufacturing, prototyping, and architecture. The lens creates a straight line that deforms over non-flat surfaces, allowing cameras to calculate object shapes via triangulation.

Often paired with acousto-optic deflectors, cylindrical lenses help focus light spots onto the correct plane. They correct images and manage lateral position changes without requiring moving mechanical parts.