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One Eye Only for Presbia Treatment

Monovision is a treatment technique used to treat presbyopia that usually requires a corrective contact lens being worn so that one eye is used for distance vision and the other is used for near vision.

Accommodative power of your eyes

If you are over the age of 40 and suddenly find yourself holding objects at arm’s length in order to see them clearly, then you may be suffering from presbyopia, which inhibits the zoom function or accommodative power of the eye.

 

When the eye is relaxed and accommodation is at its peak, your eye can see any object in the distance quite clearly. On the other hand, when you need to see an object up close, the eye has to increase its accommodative power and effectively zoom in by altering the shape of the lens.

Eye dominance

Everyone has a dominant and non-dominant eye and the brain is constantly processing visual information it receives from both eyes via the optic nerve.

 

However, the brain tends to rely on your dominant eye for the majority of your vision while the weaker, non-dominant eye acts more like a back-up option.

Smart monovision with Presbia

When it comes to treating presbyopia with more advanced technology, like the Presbia corneal inlay, monovision is induced by placing a clear microlens into the middle layer of the cornea of your non-dominant eye.

 

What’s more is that the Presbia inlay is a reversible procedure so that if your presbyopia gets worse and you need a higher prescription, a new microlens can be implanted in place of your existing one.

How Presbia affects vision

When it comes to distance vision, your pupil will dilate as normal and you use the surrounding corneal tissue not covered by the lens as well as the centre point of the lens that hold zero refractive power.

 

For near vision, your pupil gets smaller and the outer zone of the inlay that contains refractive power bends light correctly so that it focuses on the retina and images appear clear.

 

By producing a bifocal optical system, the brain learns to adapt to the Presbia microlens and within a few days you feel more comfortable and soon forget that you have the inlay.

 

If you are interested in the Presbia microlens to treat your presbyopia, call to book a free consultation on +353 1 223 8821 or visit www.optilase.com

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Patient Reviews

Margaret Mc Clafferty
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Margaret Mc Clafferty
August 29, 2026

I had LASIK done in Dublin after a consultation and follow up in Derry. From the very start, Elizabeth in Derry put me at ease with her approach. Such a warm, helpful way about her. Surgeon Mikhall Hernandez took the time to meet me in advance to explain the process. All the staff- Iwona, Julie, Jess, Robbie (from Donegal!) and Rachael, I really appreciated the way they supported me from start to finish

Aline Bortolotti Secco
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Aline Bortolotti Secco
July 31, 2026

I had a great LASIK experience at Optilase Carrickmines and couldn’t be happier with the results. Dr. Tom Materman is incredibly kind, attentive, and made me feel comfortable throughout the entire process. I highly recommend him, as well as the whole Optilase team! I didn’t feel anything during the procedure, which was much easier than I expected. My recovery has also been going really well—I’m only on day two, and everything has been smooth so far. Thank you to everyone at Optilase for the excellent care!

Carl Thorne
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Carl Thorne
July 28, 2026

Life changing. From the initial consultation to the aftercare, Optilase have been friendly, professional and caring every step of the way. No worry or concern was too small for a detailed discussion and helpful response. 3 months after my phakic lens surgery my vision is as good as it ever was with glasses without the hassle. Would recommend the Optilase Carrickmines team to anyone.

Colm Smith
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Colm Smith
July 28, 2026

Very happy with the operation, results and the aftercare

Gerard Mcphillips
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Gerard Mcphillips
July 24, 2026

Very professional and appointments on time

D
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D
July 24, 2026

Great team, great experience. Anyone thinking about doing it, do it. Always on the end of the phone if there was any issues. Highly recommend!

jason farrell
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jason farrell
July 23, 2026

The entire process was smooth professional and completely stress free, I couldn't be happier with my outcome

Tara Dowds
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Tara Dowds
July 22, 2026

Excellent experience in the Cork clinic. Dan O'brien explained everything so throughly. I really appreciated the consultation.

Michael Britton
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Michael Britton
July 22, 2026

Absolutely brilliant service from consultation through to surgery and aftercare. The whole team are really friendly and efficient. Would recommend to anyone thinking about getting corrective surgery.

Majella Murphy
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Majella Murphy
July 22, 2026

Excellent service and care. Laser eye surgery went well and have had no issues. Highly recommend Sinead and the team in Optilase Cork

Saidhbhe OShea
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Saidhbhe OShea
July 21, 2026

Highly recommended the team in the cork clinic. Very professional and friendly throughout the whole process.

wiktoria szmerdt
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wiktoria szmerdt
July 21, 2026

Lovely staff, very knowledgeable, made me feel calm and comfortable during my consultation

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