Freevis LASIK Centers: Femto-LASIK, Epi-LASIK, Alcon Cachet Phakic IOL

Share |

Astigmatismus

Image distortion occurs for both near and far objects.

Astigmatism, a common condition, occurs when the curvature of the cornea is asymmetric.
A normal cornea is shaped spherically, similar to the lens of a camera. Horizontal as well as vertical lines are refracted to form a focused image. A dot-like source of light, such as a street light, will produce a dot-like image. But if the curvature of the cornea is elliptic instead of  spherical light rays focus at different points causing  image distortion. In our example, the street light will not produce the image of a bright dot but a small line.

Astigmatism occurs frequently in addition to nearsightedness or farsightedness.

Today, there are several surgical procedures available for astigmatism correction:


   Eye laser procedures Astigmatism
  individual LASIK, Femto-LASIK up to 5 dpt.
  PRK / LASEK possible
  Lens procedures  
  Phakic lens implant (toric lenses) possible
  Refractive lens exchange (toric lenses)
possible
  Combination procedures  
  Bioptics possible