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Keratoconus is a progressive eye disease that causes thinning of the clear front surface of the eye

You can treat this condition with special contact lenses, therapies or eye surgery
Book an appointment

Keratoconus is a progressive eye disease that causes thinning of the clear front surface of the eye

You can treat this condition with special contact lenses, therapies or eye surgery
Book an appointment

Fix your keratoconus and regain trust in your vision

In the toggles below, we have provided everything you need to know about keratoconus and how we can treat it
The estimated prevalence of keratoconus in the general population is from 50 to 265 cases per 100 000.

This variation is due to different diagnostic criteria, different genetic predisposition and different exposure to cofactors.

Normally, the cornea has a dome shape. Sometimes, the structure made of tiny fibres of protein isn’t strong enough to hold its round shape, and it bulges outward, like a cone. This is called keratoconus.

No one knows what causes keratoconus, although genetic and environmental factors are thought to be involved.

Some factors can increase the chances of developing keratoconus:

  • Having a family history of keratoconus
  • Rubbing eyes vigorously
  • Having certain conditions such as retinitis pigmentosa, Down syndrome, hay fever, asthma
To diagnose keratoconus, we must measure the curvature of the cornea. We can perform several different tests to make the diagnosis. The one we use most often is called topography. This test measures the curvature of the surface of the eye and creates a coloured map of the cornea.

Treatment of keratoconus

Keratoconus is an evolutive progressive disease. The cornea (the transparent outer part of the eye) which is normally round and domed becomes thinner to form a cone. The irregularity of the cornea causes blurred vision.

The cross-Linking (CXL) treatment strengthens the biomechanics of the cornea and stops the progression of the keratoconus in the early phases of the disease. This technique involves applying a photo-sensitive solution (riboflavin or vitamin B2) to the cornea and exposing it to a low dose of ultraviolet rays. The solution then reacts with the ultraviolet light to create new collagen bonds across the cornea.

The procedure

On the day of your procedure, you will spend an hour in the clinic. On arrival, you will receive a pre-medication and put on a sterile outfit.

During your procedure

It takes place in a lying position on a stryker ophthalmology chair. After following strict aseptic regulations, we perform topical anesthesia with a few drops of eye drops. The procedure lasts around 30 minutes. It consists of two stages:

  • Putting drops of solution into the eye (vitamin B2)
  • Application of UVA light to the eye

After your procedure

It is necessary to be met by an accompanying person on leaving as it is advisable to rest with eyes closed during the first hours following treatment.

You will start an antibiotic and anti-inflammatory treatment on the evening of the procedure as indicated on the prescription.

During the week following the operation, it is essential not to expose your eyes to hazardous situations (dust in the air, for example). You must avoid all situations that may expose your eyes to micro-organisms (e.g. bacteria, viruses, fungi). Strict hygiene rules should be observed, including washing of hands before the installation of eye drops. You should avoid shocks to your eyes and even restrain from rubbing your eyes.

Dr. Donate will provide your post-operative follow-up. It will consist of a check-up visit during the days following the intervention.

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Enjoy exceptional natural vision in Lyon with The Donate Method


The first step is to find out if laser eye surgery is right for you. That’s why we offer a free first appointment. Give us a call on 04 78 17 27 27 or use our easy online calendar to get an appointment. 


Visit our high-quality clinic, where we’ll give you a comprehensive eye examination and discuss your lifestyle. You’ll leave with a clear answer about the best treatment option for your eyes.


After being treated with The Donate Method, our patients tell us that every day is better and they wish they had done it years earlier! You’ll be ready to enjoy a new freedom without the hassle of glasses and contacts!

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We’ve helped thousands of Lyonnais enjoy exceptional natural vision without glasses and contact lenses

★ ★ ★ ★ ★

I highly recommend the clinic. The staff, the care and the post-operative make you wonderfully well supported during your life change. I had myopia, and to this day, I no longer have glasses. I had no pain or discomfort.

Julie P.

★ ★ ★ ★ ★

A new life begins without glasses, thanks to Dr Donate. He and his team were very professional. They were always available to answer my questions, and all in all, it was a very pleasant atmosphere. The organization of the intervention was perfect. Do not hesitate to contact Dr David Donate.

Susanne N.

★ ★ ★ ★ ★

I had no postoperative pain, and an hour later, it was as if the procedure had not happened except that I can see better! Very fast recovery and amazing results. Living without glasses for the first time in your life, it does not cost. Go for it!!

Daniel A.

★ ★ ★ ★ ★

It really changes daily life to be able to do without glasses. I don’t have to worry about them fogging up; I can see well in all circumstances (in the pool or the sea); and my field of vision has expanded because glasses frames no longer block my peripheral vision.

Allan S.

★ ★ ★ ★ ★

I am very satisfied with my results from the SMILE procedure. I did not feel any pain during the operation or after. I thank Doctor Donate for his expertise and his work. I also thank all the team who were kind and attentive. Thank you all.

Lydia B.

★ ★ ★ ★ ★

I feel like I have found my freedom. Goodbye glasses and lenses, I know have perfect vision from far and near. A big thank you to Dr David Donate and his entire team for their professionalism, warm listening and their reassuring follow-up.

Annie B.

★ ★ ★ ★ ★

Everyone is pleasant and makes you feel very comfortable at this high-end establishment.

Pascale B.

★ ★ ★ ★ ★

I had SMILE laser eye surgery with Doctor Donate to correct my myopia, and I’m really happy with the result! What happiness to no longer wear glasses or lenses. The care at the office and the Laser Vision Roosevelt Center was perfect! Thanks to the whole team.

Johanna W.

★ ★ ★ ★ ★

The operation (SMILE) was painless and very fast for both eyes. Later that evening I watched a movie and could finally see the subtitles without glasses!

Alain R.

We have replaced the images of real patients who provided these testimonials to protect their privacy.

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Have you noticed your vision has become cloudy and dull? Even wearing glasses doesn’t help. It’s possible you have cataracts.

Find out if you can clear up your vision AND free yourself from the hassle of reading glasses at the same time.

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Links to authoritative resources on eye conditions

Follow the links below for more information on eye conditions

Dry eye syndrome is a chronic and typically progressive condition. Depending on its cause and severity, it may not be completely curable. Click here to read more.

Meibomian gland dysfunction (MGD) is blockage or some other abnormality of the meibomian glands so they don’t secrete enough oil into the tears. Because the tear film on the surface of the eye then evaporates too quickly, MGD is associated with dry eye syndrome. It also is connected with an eyelid problem called blepharitis. Click here to read on.

Keratoconus is a common corneal disorder where the central or paracentral cornea undergoes progressive thinning and steepening causing irregular astigmatism. Click here to read on.

Dr. David Donate

Ophthalmologist – Refractive surgery specialist

20 years’ experience and 20000 successful vision correction treatments

With over 20 years of experience performing more than 20000 successful eye procedures, and a repertoire of academic publications and research, Dr. David Donate has earned himself an international reputation.

At his state-of-the-art clinic in Lyon, Dr. Donate follows a specialised method called, The Donate Method, to ensure his patients feel confident about their vision correction journey. Combined with the highest quality pre-op and post-op appointments, expert precision solutions and top technology, Dr. Donate is perfectly positioned to deliver the best possible outcome for his patients.


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