Fixing complications after laser surgery

The ELZA Institute has a global reputation for fixing complications after laser surgery. Prof. Hafezi, the Medical Director of the ELZA Institute, has nearly 20 years of experience in laser refractive surgery, and this experience is a key reason why patients are referred from all over the world to ELZA to have failed refractive surgeries repaired by us.

Here are some examples of ELZA fixing complications after laser surgery:

Repairing a decentred ablation:

The image on the left is an example of a complication after an old PRK.

Before
After

The “before” image on the left is from an old PRK for myopia, but unfortunately, the laser ablation was de-centered, and this has left the center of the cornea “multifocal” – meaning that the patient has blurred vision. 

 

The “after” image is after correction at ELZA with a wavefront-guided PRK. We have been able to give the patient a big, homogenous optical zone, and this gives the patient a distinct improvement in visual quality and visual acuity, in both light and dark conditions

Fixing poor vision at night

Thanks to limitations of early excimer lasers, refractive surgeries performed in the early 2000s (like the case presented below) had small optical zones – in other words, the region in the centre of the cornea that was corrected was relatively small. This meant that during daytime, when there is lots of light, the patient’s pupil is small, and the patient sees well. But at night, when the pupil is large, the light starts to come through the uncorrected parts of the cornea, which is “multifocal”, and the patient’s vision gets considerably worse. 

At the ELZA Institute, we were able to correct this using a wavefront-guided transPRK to expand the optical zone size to a much larger one, meaning that the patient could see well in both light and dark conditions.

Before
After

35-year-old man, 1 year after laser treatment.

Vision increased with glasses from 20% to 60%.

Fixing SMILE surgery complications

Tiny optical zones aren’t limited to old laser surgeries; here is a case of a young patient (in their early thirties) with a small optical zone after small incision lenticule extraction (SMILE) surgery, who had good vision during daylight (when the pupil is small), but had significant issues with their vision in darker conditions (when the pupil was large). We performed a wavefront-guided PRK to enlarge the optical zone.

Before
After

35-year-old man, 1 year after laser treatment.

Vision increased with glasses from 20% to 60%.

The main feature of SMILE surgery is that the laser performs the vision correction by cutting a “lenticule” within the cornea and a tunnel to the surface that the surgeon uses to remove the tissue. However, the surgeon needs to use a tiny spatula to dissect the lenticule from the stroma, as the laser is not able to separate one from the other completely. This is a potential point of failure: if the lenticule is not completely detached, and some tissue is left behind, then the patient will have significant visual issues afterward. This was the case with the patient presented below. We rehabilitated the patient’s vision by performing a wavefront-guided surface treatment over the optical zone in the center, recovering much of what the patient lost with the failed SMILE surgery.

What can I expect?

You cannot expect being completely free of glasses or reaching perfect vision. Fixing a failed refractive laser surgery is much more demanding than performing the original surgery. In many cases, we can improve on the situation, but sometimes even we cannot normalize vision completely. Our aim is to get you to the best visual quality possible. Sometimes, you will still need glasses even after our reconstructive surgery.

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Augeninstitut ELZA
4.7
Based on 94 reviews
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Thunder Shiviah
Thunder Shiviah
14:05 23 Nov 21
After some research on local options I decided to go with ELZA since it stood out as the best. The operation and the... post-operation recovery went extremely smooth (something I was worried about with PRK). Now my vision is much better than I had hoped and I have no side effects such as dry eye or night vision problems. Thank you!read more
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
4.7
Based on 94 reviews
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