Correcting Presbyopia in Prior LASIK Patients

author_thumb October 3, 2013
SHARE IT
facebook twiiter linked_in gplus f_instagram

If you have undergone laser refractive surgery in the past, you will know firsthand the transformative impact it had on your lifestyle in terms of eliminating the need to wear glasses or contact lenses.

 

However, presbyopia is not a refractive error and is simply an unavoidable side effect of the aging process on the lens that affects the vast majority of the population over the age of 40.

 

The initial decline of near vision is slight, but after the age of 45 the change becomes more apparent as the lens rapidly loses its flexibility and its accommodative ability to focus clearly on close objects.

Getting the Presbia corneal inlay after LASIK

LASIK eye surgery to correct near or farsightedness will have removed some corneal tissue through cell ablation, but this does not necessarily prevent you from undergoing further corrective procedures such as a corneal inlay to treat presbyopia.

 

The Presbia microlens available at Optilase can be used on presbyopic patients provided they are considered viable candidates during the free consultation process.

 

Placed in your non-dominant eye, the inlay does not remove any corneal tissue; but instead has been developed to permanently sit in the cornea.

Corneal thickness and implantation

One of the most important considerations that will influence eligibility for the Presbia microlens on prior LASIK patients is corneal thickness since it has previously been reshaped.

 

The average cornea is 550 microns deep and houses six different tissue layers with different functions. The stroma which is the middle layer accounts for 95% of corneal thickness and becomes home to the corneal inlay.

 

The Presbia microlens is usually implanted at a depth of 200 microns.

Creation of corneal pocket

The Presbia microlens requires a small pocket to be created using a femtosecond laser, but this is unlikely to cause any damage to the initial flap was created.

 

More often than not the pocket will be created beneath the original flap and then the microlens is easily slotted into the stroma using a special custom-made device.

Central positioning

It is vital the Presbia microlens is positioned in the centre of your line of sight. Usually patients will be asked to fixate on a certain point in the distance, often a blinking light, to ensure correct placement.

 

If you suffer from presbyopia having already undergone refractive laser surgery, call to book a free consultation to explore your options on 1890 301 302 or visit www.optilase.com/presbia-reading-vision-solution/

  • post_thumb

    What is Astigmatism? How Can Laser Eye Surgery Help You?

      What is Astigmatism? Astigmatism is a common eyesight problem across Ireland. Some people...
    Read more
  • post_thumb

    10 facts that will help you overcome your laser eye surgery anxiety

      First off, let’s clarify one thing: undergoing laser eye surgery is a very...
    Read more
  • post_thumb

    Hyperopia, Myopia, and Presbyopia: What exactly are they?

      As is the case with pretty much any medical treatments, you will encounter...
    Read more
  • post_thumb

    Optilase Q&A with Leanne Woodfull

    As an in-demand top blogger, you’re pretty busy 24/7. What gave you the push...
    Read more
  • post_thumb

    15 fascinating facts about eyes!

    While most of us appreciate and are somewhat in awe of just how incredible...
    Read more
  • post_thumb

    What exactly is astigmatism?

    The word astigmatism must be one of the most commonly misspelt words in the...
    Read more