Which type of cataract surgery: laser or ultrasound?

A cataract is treated by removing the old cloudy, natural lens and replacing it with a new artificial intraocular lens (IOL).

There are several types of intraocular lenses (IOLs):

  • Monofocal IOLs have a single focal point, either at near or far (meaning you’ll need spectacles to see other distances in focus).
  • Multifocal IOLs have two or more focal points to reduce the dependence on reading glasses due to presbyopia.
  • Toric IOLs have been designed to correct astigmatism, reducing the dependency on glasses

The operation

The first part of the surgery is the creation of small incisions in the cornea (called “clear corneal incisions”), to allow the surgeon to place surgical instruments inside the eye and perform the surgery, removing the old lens, and introducing the new IOL. The old lens is held in place by a structure known as the capsular bag. The surgeon creates circular hole in the bag to (1) enable the removal of the old lens, and (2), hold the new IOL in place, inside the bag. The circular hole can be made manually, with the surgeon grabbing the bag, and tearing the circular shape, or with a femtosecond laser, with the process being called “capsulorrhexis”.

 

Conventional, ultrasound cataract surgery

For decades now, conventional cataract surgery has involved the use of ultrasound energy, delivered by the tip of one of the small surgical instruments, to break down the old lens (a process called “phacoemulsification”). The fragments of the old lens are then “aspirated” away – literally, sucked out. This is delicate surgery, and is performed entirely manually – meaning that the surgeon requires a very steady hand. The operation is still very safe and has been ‘tried and tested’ millions of times.

Femtosecond Laser-Assisted Cataract Surgery

For the last few years, it has also been possible to use a femtosecond laser in a number of parts of cataract surgery. Lasers are even more precise than even the steadiest of hands, as all of their cuts can be planned on the computer in advance and placed exactly where the surgeon wants. The laser can be used to make the initial cuts (the clear corneal incisions), the hole in the capsular bag, and also fragment the old lens, making the phacoemulsification easier and faster to perform. This combination offers the patients the greatest possible gain from the optics of the IOL, and the greatest possible safety. Under certain circumstances, the laser is superior to conventional, ultrasound-only cataract surgery.

The ELZA Institute

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Augeninstitut ELZA
4.7
Based on 90 reviews
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Squitieri Elias
Squitieri Elias
12:43 08 Sep 21
Die Behandlungen waren bei mir erfolgreich, alle waren sehr nett und haben mein Leben vereinfacht.Danke
Eliane Bossart
Eliane Bossart
13:01 05 Sep 21
Vor einem Jahr war ich einer ganz verzweifelten Situation und total im Stich gelassen. Meine Augen wurden aufgrund... eines ausgeprägten Kerakotonus immer schlechter, ich hatte Angst und war alleine mit meinen Problemen. Zudem vertrug ich die Kontaktlinsen nur noch ganz schlecht und hatte jeden Tag Schmerzen.Professor Hafezi hat mir mit zwei Operationen wieder das auf Grund der Situation mögliche an Lebensqualität zurückgebracht. Es war ein starpaziöses Jahr mit vielen Entbehrungen aber es hat sich gelohnt! Herzlichen Dank fuer die Unterstützung.read more
Gabriela Meyer
Gabriela Meyer
18:32 22 Aug 21
Ich wurde von meiner Optikerin auf Prof. Dr. Dr. Hafezi aufmerksam gemacht. Es war mir vorher nicht bewusst, dass meine... Augenkrankheit (Keratokonus) operativ mittels Cross Linking behandelt und so gestoppt werden kann. Die Beratung und Behandlung war sehr kompetent und ich fühlte mich jederzeit wohl. Die Operation verlief gut und das Ergebnis ist einwandfrei.read more
Naomi
Naomi
11:38 11 Aug 21
Ich bin sehr glücklich, dass ich das Elza Institute gefunden habe. Ich wurde von anderen Augenärzten abgewiesen, da... meine Augen zu kompliziert/schwierig zu behandeln waren. Prof. Dr. Dr. Hafezi konnte mir jedoch helfen und ich bin sehr glücklich und zufrieden mit dem Resultat. Vielen Dank!read more
Till B
Till B
08:30 19 Jul 21
Ich habe eine überaus kompetente Beratung und Behandlung erlebt. Die gesamte Betreuung war sehr freundlich und... professionell. Herzlichen Dank!read more
Thomas S.
Thomas S.
09:37 07 Jul 21
My left eye had to be operated on because of a cataract. As I had an Artiflex lens implanted a few years ago, it had to... be removed first before a modern lens could be implanted to correct the cataract. Prof. Hafezi treated me in an very competent and friendly manner. I am very happy with the result.read more
Selma A. Rahim
Selma A. Rahim
19:45 02 Jul 21
Dr. Hafezi.. the KING OF CXL🤴
Gianluca Ricci
Gianluca Ricci
12:46 10 Apr 21
Great team and service!
rehaneyecare
rehaneyecare
05:36 08 Apr 21
Excellent surgeon
Steven H.A
Steven H.A
16:13 11 Jan 21
Prof. F. Hafezi s expertise is enormous and he has a very pleasant and calm nature which gives the patient... security.Thank youread more
Online Commande
Online Commande
09:19 05 Dec 20
Totally creepy, very arrogant Prof.He just want your money.It may explain, why this Prof. is not in the center of the... city of Zürich and why he has been thrown away from University of Geneva.read more
Elena Churilova
Elena Churilova
10:06 17 Nov 20
At the moment, 3 months have passed since the moment I made laser vision correction in this clinic. and I can say that... I am happy that I chose this particular clinic and Prof. F. Hafezi. The entire staff of the clinic is very friendly, treats patients with sympathy and patience if they are nervous before surgery (my big gratitude to Aida Alili for all support and patience). The doctor Hafezi and other doctors of the clinic are very professional and ready to explain to you as many times as you need. I can only recommend!read more
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Augeninstitut ELZA
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Based on 90 reviews
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