There are 4 main areas of cataract surgery which are enhanced by the use of the femtosecond laser:
1. Corneal incision
The laser creates a very precise stepped incision to allow access to the cataract
- No stitches are required as the incision closes by itself
- No stitch-related astigmatism or infection
- Reduced risk of postoperative wound leak which may require another operation
2. Corneal relaxing incisions
The laser can make very precise additional incisions in the cornea if required
- Improvement in astigmatism
- Reduced need for glasses after surgery for astigmatism
- Improved visual outcomes
The Femtosecond laser makes this surgical step much more predictable. The precise size and centration of the capsulorrhexis (the opening in the anterior lens capsule) allows for a more stable, better centred lens implant, which in turn is less likely to tilt or shift. This is important in ensuring the best possible optical outcome and is even more crucial to the optical outcome when using premium lenses such as Multifocal or Toric lens implants.
This step is the most delicate and crucial to the safety and outcome of the operation The femtosecond laser makes this very precise and reproducible
- A capsulorrhexis of the correct size allows an easier removal of the cataract or clear lens
- A capsulorrhexis of the correct size and shape reduces the risk of the new artificial lens tilting or becoming decentred
- A precise capsulorrhexis aids better lens positioning and therefore more predictable visual outcomes
- A precise capsulorrhexis reduces the risk of the capsule of the lens tearing and therefore further more invasive surgery
4. Fragmenting the cataract/clear lens
Fragmentation of the cataract or clear lens into small pieces is important to help remove the cataract from the eye using ultrasound energy. The adult lens is approximately 10mm in length and 4 mm in thickness.
The incision made in the cornea for removal of the cataract lens is usually less than 3mm. Clearly the cataractous lens will have to be broken down to aid removal. The femtosecond laser performs this part of the surgery precisely to allow an easier faster removal of the cataract or clear lens.
The cataract is in a bag held in place by delicate fibres within the eye called zonules. These are less likely to be damaged during the removal of the cataract or clear lens and will allow the new lens implant to be more stable in the eye.
Less ultrasound power is used within the eye reducing the risk of damage to the cornea and reducing inflammation. This may cause pain and poor vision after the operation. The risk is much reduced when using the femtosecond laser.
Overall using the femtosecond laser to perform cataract surgery or clear lens surgery offers greater precision, greater safety and improved visual outcomes.
If you have been affected by any of the symptoms mentioned above, please don't hesitate to give us a call.
We have a team of experts on stand-by who are ready to take your call at our Manchester (0161 907 2685) Clinic or our Blackpool (01253 308 031) Clinic.