Your questions


How long does the eye color change last?

Until recently, it was possible for color to fade after a few months, or even a few years, particularly in cases of heavy sun exposure. Since 2023 and the launch of a new generation of colorants, the absorption effect is no longer present, and color lasts over time.

Where can I have the operation?

The procedure takes place exclusively in ophthalmological surgery clinics scrupulously selected by Neoris for the quality of their technical equipment.

You can find a list of clinics here:

Are my identity documents still valid after the procedure?

No, because your appearance is modified. After the operation, it will be necessary to change the photos on your identity documents. You will be given a certificate attesting to the change in eye color.

How many touch-ups in total?

There are no limits on touch ups.

What is the earliest age at which an operation can be performed?

The minimum age depends on the country in question. You can find out more directly from a surgeon in the country of your choice:

Why doesn’t the color cover the iris all the way to the center of the eye?

The cornea is a transparent dome in front of the eye that lets light pass through to the retina. Making the edges of the cornea more or less opaque with pigment has no effect on vision. On the other hand, covering more of the center of the cornea would significantly limit our field of vision. It would also make it more difficult for an ophthalmologist to properly examine the back of the eye, and certain operations (such as cataract surgery) more difficult to perform.

Is keratopigmentation an eye tattoo?

No, it’s not the same thing. An eye tattoo involves the injection of a dye into the white of the eye (between the conjunctiva and the sclera). This injection is performed with a needle by a non-medical tattooist. The risks of eye tattooing are considerable, and serious complications have been described. In contrast, the risk-free keratopigmentation operation involves the placement of a dye in the cornea using a laser, without the need for a needle. These are two totally different procedures.

Is the appearance of the operated eye natural?

Depending on the color and intensity you choose, it’s possible to achieve a completely natural result. That’s why we offer a simulator to help you make your choice:

In addition, before the operation, you can talk to your surgeon who, with his or her experience, will be able to advise you towards a natural result. Here are some natural results:

Is it possible to reproduce the striated appearance of the iris?

No, that’s not possible.

Is there an alternative to keratopigmentation?

The alternatives for changing eye color are as follows:

Wearing coloured lenses: This is by far the most widely used technique. However, complications associated with colored lenses are more frequent than with clear lenses.

The placement of colored silicone implants in the eye: This technique regularly leads to complications that can be very serious. Several cases of blindness have been described following the insertion of these implants.

Laser depigmentation of the iris: The success rate of this technique is extremely low. Only 10% of patients are satisfied, because : • The result is only visible after many sessions, and most often the final color tends towards a faded grey. It is impossible to choose the color. • The operation gives poor results on moderately pigmented eyes and does not highly pigmented eyes (grades 4 and 5). • Repigmentation is frequent after 1 year. • Serious complications, such as glaucoma, are possible. Unlike all these alternative techniques, the keratopigmentation technique developed by developed by Dr. Ferrari and promoted by Neoris is achieving excellent results. Practiced since 2013, this method has already proved its worth over time. To date, keratopigmentation, offered by the surgeons on the Neoris platform, is the only surgical technique surgical technique for permanently and safely changing eye color. safely. Ophthalmic surgeons who are members of the Neoris alliance are authorized to perform keratopigmentation are carefully trained by the technique’s inventor. They are required to follow a precise medical protocol, and hold the compulsory insurance for this unique practice.

Is the procedure painful?

The operation is painless. It is performed under local anaesthetic with simple eye drops.

Can dark eyes be operated on?

Yes, and the aesthetic result is better on dark eyes (grades 4 and 5) than on light eyes.

Are there any pre-requisites?

No, you can make an appointment with a surgeon who will perform all the necessary tests:

Is it possible to operate on only one eye or to make 2 eyes of different colors?

Yes, it’s quite possible.

Is it possible to remove the color?

Yes, Dr. Ferrari has been working for several years to develop a technique for removing all the color from the eye. Several such operations have already been performed. The operation is therefore completely reversible.

Can I take advantage of the procedure to have myopia surgery?

It is possible to take advantage of the keratopigmentation procedure to undergo myopia surgery. The surgeon will explain all the details to you:

Is there any pain after the operation?

No. There may be slight discomfort, but all you need to do is take the painkillers prescribed by your surgeon.

Can I see again immediately after the operation?

Sight is usually blurred for a few hours after the operation, but is still sufficient to get around on one’s own and take a cab. The next morning, vision is much improved. It should return to normal within 2 to 3 days.

What are the risks?

In the past, a loss of corneal endothelial cells was noted after each operation and after each touch-up. However, since 2023 and the introduction of a new generation of dyes, the loss of endothelial cells after surgery is no longer significant.

Are there any contraindications to keratopigmentation surgery?

As a general rule, keratopigmentation operations are performed on healthy eyes. In particular, patients with corneal damage are excluded. Patients who have undergone corneal transplantation or radial keratotomy cannot undergo keratopigmentation. Keratoconus is a contraindication to surgery.

Is night vision impaired?

No, keratopigmentation does not affect night vision. No cases have been reported.

Is it possible to operate on an eye that has been operated on with a BrightOcular implant?

The first step is to remove these implants as quickly as possible, as they represent a very serious visual hazard. Then, if 3 months later the cornea is healthy, a keratopigmentation operation can be envisaged.

Is it possible to operate on an eye that has been treated with laser depigmentation?

Yes, it is possible.

Is it possible to live a normal life after surgery?

Yes, after a maximum of 3 days, you’ll be able to resume your normal activities, take up sport again, apply make-up…

Can I have presbyopia surgery during the procedure?

• If you wish to undergo presbyopia surgery in addition to keratopigmentation surgery, you should start with multifocal implants at least 3 months before keratopigmentation. • Laser techniques for correcting presbyopia are not compatible with keratopigmentation surgery.