Presbyond®
- Laser Surgery
for PresbyopiaLaser Surgery for Presbyopia

The absence of any progressive eye disease is essential for eye surgery eligibility. But it is not always sufficient. There are other criteria that need to be considered.

Corneal thickness (the lens at the front of the eye) is very important, as vision correction is done by reshaping the tissue of this lens. Therefore, a minimum corneal thickness is required, beyond which the surgery can become risky for the eye.

Pupil diameter should not be too large. If pupils are naturally large, there is a risk of unpleasant visual effects after surgery: halos, glare at night, especially while driving.

High diopter values may limit the possibility of complete correction. Results of laser eye surgery for high diopters can be unpredictable and may have a risk of visual complications. In these situations, other intraocular procedures may be recommended for vision correction.

Progressive eye diseases such as keratoconus, diabetic retinopathy, glaucoma, macular degeneration, severe dry eye, cataracts, and eye inflammations prevent you from having laser vision correction surgery. There are other procedures available in such situations.

Degenerative or autoimmune conditions such as diabetes, connective tissue diseases, Sjogren syndrome, rheumatoid arthritis, HIV infection affect post-operative healing and are contraindications for laser surgery.

ATTENTION: Soft contact lens wear must be stopped at least one week before consultation and at least two weeks before surgery. For hard orthokeratology lenses, the term is at least one month.

Laser reshaping requires detailed and very precise measurements of all eye structures. Additionally, the Presbyond technique requires a tolerance test where the doctor will simulate post-procedure vision and determine if your brain can adapt to it. The tolerance rate is over 95%.

Investigations include:

• Pentacam Corneal Tomography
• Specular Microscopy
• Corneal Topography
• Pahimetrie
• Retinal and Optic Nerve Tomography
• Pupilometrie
• Computerized Perimetry (if needed)

Post-surgery results are excellent and patients enjoy good vision without glasses. Recovery is very fast in most cases, with patients resuming activities the next day.

Your expectations should be realistic. Visual acuity depends on the optical system of the eye which is corrected by these procedures, but also on the quality of the retina, optic nerve and other eye structures. The goal of surgery is for the patient to see without glasses after surgery, as well as they saw with (correctly prescribed) glasses before surgery.

Laser vision correction procedures are considered among the safest in surgery in general. Millions of these procedures are performed worldwide annually, with over 40 years of history. Meanwhile, technology has advanced enormously, making them safer and faster.

However, you should be aware that there may be risks and possible side effects associated with any medical procedure. Although extremely rare, possible complications that may occur after surgery are: chronic dry eye, visual halos and fog, undercorrection, overcorrection, flap-related complications, retinal detachment, infection.

The vast majority of complications are treatable and usually resolve within the first few months after surgery.

The corneal changes made during the surgery are permanent, but the eye being a living structure may undergo changes over time, independent of the procedure itself. These changes are related to the natural aging process of the eyes and the individual healing process. Diopter changes are usually minor and do not have a significant impact on vision.

You will see immediately after getting up from the operating table, but vision will be "as if through water". Most patients can see well enough to text on their phone immediately. For a few hours you may experience stinging, tearing, and sensitivity to bright light.

In most cases, recovery is very easy: immediately after surgery, vision is improved, and from the second day the patient can largely resume activities.

Healing occurs at each persons own pace, and can take from a few days to a few weeks as the visual system recalibrates and the brain must gradually adapt to it.

Post-operative treatment in the first two weeks consists of antibiotic and anti-inflammatory drops.

The fear of surgery is understandable, but laser procedures are extremely fast and involve no discomfort. Although performed in an operating room with all related protocols, they can hardly be called "surgical operations" in the sense known to everyone. Patients almost without exception say they did not realize when it was over and regret not having the procedure done earlier.

To see well after presbyopia onset, reading glasses or progressive glasses are worn if there are other pre-existing refractive errors.