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PRELEX - Presbyopia surgery


PRELEX: a controlled, effective and life-lasting surgery

Presbyopia: an inevitable phenomenon

No-one can avoid presbyopia; it starts developing from the age of fifty and results in a progressive loss of near vision. As the lens ages it starts gradually losing elasticity. It thickens, hardens, losing its suppleness until it can no longer function properly. Accommodation (the lens changing focus) becomes insufficient.

A lasting solution exists which stops this natural and inevitable phenomenon: PRELEX


Approved in 1997 by the FDA, PRELEX (Presbyopic Lens Exchange) is used to correct presbyopia. The procedure consists of replacing the hardened lens and replacing it with a multi-focal lens.

During the procedure, the natural lens of the eye is gently removed by a 1.5 mm micro-incision made on the surface of the eye using a device called a phako-emulsifier. Ultrasonic waves are then emitted to liquefy the crystalline lens. A new implant is then introduced to replace the aging lens which has been completely removed. The new implant is a high-technology device called a ‘multi-focal implant’. Used for the past 20 years, they provide an excellent viewing experience: from close-up reading; to intermediate vision to be able work, for example, on a computer; and finally, to distance vision for sports or driving. A multi-vision experience !

It is a frequently-performed, simple and effective surgical operation. The visual recovery is rapid as you can resume your daily activities the next day. Multifocal lenses allow you to experience vision at all distances, without feeling the sensation of having something on your eye. The biomechanics of the eye are perfectly respected, it feels natural and normal.

Medicine and related technologies are making considerable progress; with the PRELEX procedure, presbyopia is no longer inevitable. It is a "technological" opportunity to be able to stop wearing glasses. Patients operated on using the PRELEX principle are no longer presbyopic; their presbyopia is corrected in a definitive and non-evolutionary way. Additionally, the operated-on patients will also not develop cataracts later in life, as the lens has been replaced. The lifetime of the implanted lens is indefinite. Implants of recent generations have a better optical quality than the natural crystalline lens!

The PRELEX procedure is an excellent choice if you want to see clearly from near and far without glasses or lenses. The results are excellent when the indication is correctly identified; so choosing an experienced surgeon ensures an accurate and safe result of the highest quality.

Nevertheless, there are no ‘safe’ surgeries! Choosing a qualified surgeon that uses high-end technology and ensures comprehensive care beyond your operation greatly reduces the risk of potential complications.


Please do not hesitate to contact us, we will be delighted to answer all of your questions.


Your operation in 3 steps:

Before your operation

On the day of your intervention you will spend a morning with us. You will be able to leave the clinic at around noon. You can choose your anesthesia according to your preference. It may be deep local, or localized potentiated (neurolept-analgesia) anesthetic or general, if you prefer. Upon arrival at the clinic you will be given a pre-medication. You will wear a sterile operating robe. Dr. Donate’s entire team will take care of you.

During your operation

During your operation you will be lying on an ophthalmology chair. After following strict antiseptic rules, the anesthesia of your choice is performed. The procedure, which lasts approximately 30 minutes, is composed of 2 stages:

- The liquefaction of the lens by the ultrasonic waves of the phako-emulsifier

- The insertion of the implant

The procedure is not painful and is perfectly safe. We use the ZEISS OPMI LUMERA 700 microscope. It represents the ultimate in ophthalmic surgical vision. The use of the Calisto ZEISS marker allows us to accurately align your implants along the axis of the corneal astigmatism. Your treatment is specific and personalized.

During your operation you will be guided by the team and must follow the instructions given to you by your surgeon.

At the end of the treatment you will be able to get up and the assistant will escort you back to the rest room. You must not touch your eyes.

After your operation

For your departure it is necessary to be met by an accompanying person. During the first hours following the operation it is advisable to rest with your eyes closed. Transparent shell-like googles are recommended to wear for sleeping during the first week. You will start antibiotic and anti-inflammatory treatment on the evening of the procedure as indicated on the prescription.

It is essential not to expose yourself to “at-risk” atmospheres during the first week. All situations that may expose your eyes to micro-organisms (bacteria, viruses, fungi) should be avoided. It is essential to observe strict rules of hygiene, in particular to washing hands well before the instillation of eye drops. You should also avoid rubbing your eyes, and of course avoid trauma to your eye.

A follow-up visit is planned for the day after your procedure, then a week later and finally, a month after the procedure.

The post-operative follow-up is provided by Dr. Donate who remains at your disposal seven days a week for all your concerns or possible questions.