Astigmatism · Vision

What Does an Astigmatic Eye See?

Blur is not equal in every direction: lines parallel to the axis stay sharp while perpendicular ones blur. Point lights stretch into a star-like streak.

Uncorrected Directional blur

Cylindrical Lens Sharp in every direction

Blurred

Fan / Clock Dial

Point Lights (Night)

Eksen90°

Axis 90°

Sharp (parallel to axis) Blurred (perpendicular to axis) Corrected image