Cataract surgery has now become a refractive surgery and the goal is not just to to remove the opacified cataractous lens but also to reduce dependency on glasses.
A routine Cataract surgery can only correct the spherical component of the eye leaving behind the cylinder power which has to be later corrected by additional prescription glasses.
With advancements in surgical techniques and IOL (artificial lens) designs, today both spherical and cylinder components of eye can easily be corrected with highest precision
The cylinder component in Cataract Surgery can be corrected by three ways
LRI or Limbal Relaxing Incisions: In this technique, a Femto Laser is used to give highly precise incisions at the periphery of the cornea to induce cylinder correction. Since these incisions are given by a laser, it can only be coupled with a Femto Cataract Surgery.
Toric Lenses with Verion Digital Axis Marking: Toric lenses are special lenses which have both cylinder and spherical component build in one lens. Since cylinder axis varies in individual eyes, the lens has to be aligned to specific axis of the individual. In such cases even a minor deviation from the original axis can cause significant disturbance in final visual outcomes.
Now with the introduction of Verion Digital Axis Marking system, these toric lenses can be aligned with outmost precision, upto 1 degree.
Toric Lenses with Manual Marking: As discussed above, the final visual outcome in a toric lens depends on how precisely it is aligned to the original cylindrical axis of eye. Since the manual markings cannot be as precise as digital markings, the manual system may give slightly inferior results compared to the digital system.