Can a lens replacement procedure correct astigmatism (a cylinder error)?
A lens replacement procedure can correct virtually all types of refractive errors, including nearsightedness, farsightedness, and astigmatism.
Astigmatism occurs when the eyeball is not perfectly round but oval in shape, like a rugby ball. As a result, light is refracted in multiple directions, creating two focal points, which can cause blurred or double vision. In most cases, the strength of astigmatism is no higher than −6.0 diopters and can be very effectively corrected with a lens replacement procedure.