O que é ceratocone?

What Happens?

Keratoconus is a corneal disease, in which the mechanical strength of the tissue is reduced. This causes the cornea to bulge forwards, forming a “cone” shape. What results is irregular astigmatism. 

The cornea may continue to bulge and thin out at the tip, increasing the amount of astigmatism over time. The fact that the cornea becomes so irregularly shaped means that spectacles can no longer be used to correct the visual effects of keratoconus effectively, although this is still possible with the use of special contact lenses in the early stages of the disease.

Although the disease has been known about for over 150 years, our understanding of what causes keratoconus has increased significantly in recent years.

In 2015, an international expert group redefined the disease. For this purpose, 9 experts would be determined on each continent. Professor Hafezi from the ELZA Institute was one of the 9 European experts in the group.

What happens in keratoconus?

Sintomas

The main symptom of keratoconus is reduced visual acuity that cannot be corrected with glasses.

In the early stages of the disease, the edges of objects can appear blurred and the disorder is particularly noticeable in the evening. As the disease progresses, double, triple and even quadruple vision may result.

How common is keratoconus?

Much more common than was previously thought.

One of the most frequently cited scientific publications on keratoconus comes from the United States of America in 1986, which stated that the incidence of the disease with 1 person in 2000. This statistic makes keratoconus a “rare” disease. However, that study was performed using old research methods, using old diagnostic instruments that are much less sensitive than the modern diagnostic instruments available today. In reality, keratoconus is likely to be far more common than 1:2000 people – and if eyecare professionals think it’s a rare disease, then they are less likely to screen patients for it, meaning that many patients with keratoconus have their disease detected at a much later stage.

Our group has now conducted a study that measured more than 1000 children and adolescents in Saudi Arabia. The study was published in early 2018 in the prestigious scientific journal British Journal of Ophthalmology. We found a frequency of 1 in 21 people – not 1:2000.

Keratoconus appears to be much more prevalent in the Middle East than previously thought. Similar studies in the rest of the world are still missing, but we are in currently working changing that situation.

Does keratoconus stop?

With increasing age, our body (and the connective tissue it contains) becomes increasingly stiffer. The cornea is made from connective tissue (i.e. collagen) and also becomes stiffer. Therefore, the disease will one day stop and does not deteriorate further, often between the 35th and 45th year of life. However, we also see patients who still have active keratoconus at the end of 50: ageing only decreases the likelihood of keratoconus progression, but that probability will never be zero.

Can keratoconus progression be stopped?

Yes. Corneal cross-linking is an operation that can stop the disease with a chance of success of over 90%. 

The idea of ​​cross-linking was first conceived in Germany, but the technique and the technology was developed in Zurich and has spread from Switzerland to the whole world. Today, CXL (corneal cross-linking) represents the global standard of keratoconus treatment.

Prof. Farhad Hafezi from the ELZA Institute was one of the group that established this technique in modern ophthalmology. He has one of the longest experience of cross-linking in the world.

ANTERIOR

Keratoconus Video Interviews

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How is Keratoconus Diagnosed?

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Augeninstitut ELZA
4.8
Como base em 109 críticas
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mike
mike
09:02 04 Jan 23
Overall as a 50 year old, who wanted to continue to avoid wearing glasses and/or contact lenses, my goal was 100%... achieved with ELZA and Dr. Hafezi. I greatly appreciated the overall approach by Dr. Hafezi and his friendly and competent team in reviewing my vision at the start and following a comprehensive eye exam- the explanations of my options. For me I chose PRK in one eye for a monovision solution to correct short sightedness which was becoming more prevalent in night driving and sports such as skiing and cycling. PRK heals slowly but the outcome is worth the wait- and the cost- you use your eyes every waking moment- and for me I cannot see any reason not to pursue better vision with the ELZA team! A great quality of life enhancement!ler mais
Zuzana Fecko
Zuzana Fecko
21:48 31 Oct 22
Thank you so much, Dr. Torres and prof. Hafezi. 26 years I was only “dreaming” about the eye surgery due to possible... complications. I was worried ..Thank you for encouraging me to make a decision and thank you for your professionalism, explanations and great work!I wish you all the best, lots of success and only happy patients!ler mais
Serena Fazio
Serena Fazio
11:15 06 Mar 22
I have been to the ELZA clinic to have surgery for my miopy, as my eyes were rejecting the contacts and I was tired of... wearing glasses. From the first preliminary visit, to the actual surgery and post-surgery care Dr. Hafezi and all his collaborators have been extremely professional, considerate and helpful. All the steps of the (very short!) surgery were thoroughly explained to me in order to be as calm as possible, together with the medication plan and precautions to be aware of so that my eyes could heal in the best way possible. By following their exact instructions, the healing process has been very successful and smooth, and after about one week I was able to see perfectly. I absolutely recommend this team and their expertise!ler mais
Robin A
Robin A
11:43 16 Feb 22
Top experts and professional team. Highly recommended
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!ler mais
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.ler mais
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 youler mais
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.ler mais
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!ler mais
Michele Aggiato
Michele Aggiato
18:17 10 Jan 20
The day I had Prof Hafezi checking my keratoconus I knew I was finally in the right place after years of searching for... a good ophthalmologist. Prof Hafezi recommended a surgery due to a drastic degeneration of my cornea. The surgery was performed by himself with the assistance of Dr Rodriguez, one more collaborator of Prof Hafezi’s team who got my full trust.ler mais
Ashley Faulkes
Ashley Faulkes
15:30 21 Mar 16
Professor Hafezi and the team at the ELZA Institute have done an amazing job of creating a first class eye clinic, with... cutting edge technology and support. I went there for a dry eye issue and other issues with my prescription, and they were easily able to help me and put me on the road to better vision! High recommend them to anyone in the Zurich/Aargau area.ler mais
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Augeninstitut ELZA
4.8
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