The size of your pupil can vary from 2mm to 8mm depending on the natural accommodative power of your eyes and whether you are in bright (2-4mm) or dim (4-8mm) light conditions.
While you might think the pupil is just a big black opening in the centre of your eye that gets bigger or smaller at any given time, the truth is your pupils are responsible for controlling the amount of light allowed into the eye.
Surrounded by the iris, which gives your eyes their colour, the pupils contract and relax depending on the intensity of outside light.
Your pupillary reflex is controlled by the autonomic nervous system in the body, which instructs the muscles in the iris to either constrict or relax depending on how bright or dark conditions are.
Dilator muscle: Shrinks the iris when in low levels of light. This makes the pupil appear larger in order to allow as much light as possible to shine on the back of the eye.
Sphincter muscle: Expands the iris when you find yourself in bright conditions, so the pupil contracts and less light can infiltrate your eye.
Pupils are normally equal in size, but there is a condition called anisocoria which is when one pupil differs in size from the other.
Some people naturally have larger pupils and sometimes certain medications can cause pupils to become larger, especially in dim lighting.
Taking an accurate measurement of a prospective Laser Eye Surgery patient is extremely important as some corrective procedures aren’t suitable.
During your free consultation, pupil size will be measured in dark conditions so that the pupil is fully relaxed and at its largest.
There is a greater chance of night vision being affected in patients with large pupils, which can cause glare, halos or starbursts.
However, advances in laser technology have adapted so that those with large pupils can undergo Laser Eye Surgery safely.
The WaveFront procedure in particular is ideal for larger pupils as a 3D map of the corneal surface is taken when the pupil is fully dilated.
Corrective treatment is then programmed to correct every error on the cornea without negatively affecting night vision ability.
To find out more about WaveFront or any other corrective procedure, book your free consultation on +353 1 223 8821.
Great experience and great after care. Had 2020 vision within 24 hours with very minimal pain.
Amazing experience , amazing staff, amazing eye sight . I had lens replacement 3 months ago and would highly recommend.
I got my laser eye surgery done on April 20th and couldn’t be happier. I had one hard day of recovery, followed by dry eyes for a small while. Sleeping with the protective goggles is the hardest part, but you’re helped throughout the process by experts. I couldn’t recommend this enough and Optilase were a dream to deal with. Even if you can’t afford the treatment now, you can always talk about a payment plan and get the vision you’ve always wanted.
I could not rate high enough, consultation was extremely informative and the staff were amazing, very friendly and answered all my questions with ease.
I had a wonderful experience in Optilase in Ely Place, the staff were so kind and helpful and made me feel really comfortable. Would absolutely recommend
Couldn't rate Optilase high enough. I had Lens Replacement Surgery. My experience from the first phone call to the procedure itself and the aftercare was fantastic. All of the staff from the call centre to the staff in Carrickmines and the theatre were so helpful and friendly. Would definitely recommend .
I had my PRK done on both eyes , and im happy with the result. The post operation pain was extreme but it settled down after 4 days. Now i feel great after 2 weeks post operation no complications what so ever , other than blurry vision now and then, but its improving every day
Got LASIK in Ely Place only yesterday and officially had 20/20 vision just 24 hours later! Cannot recommend Optilase enough from my initial consultation with Aisling in Athlone to my trips to Carrickmines and Ely Place. The staff really look after you from the moment you walk in the door and make you feel so at ease from start to finish - 10 out of 10 experience!
I highly recommend this place, reliable information and care, full professionalism.
LASIK was so easy and pain free. It’s one week post surgery and my eye sight is wonderful. I couldn’t recommend enough.
I no longer need glasses,absolutely life changing.Great aftercare,lovely staff.
I have been wearing glasses for over 20 years. I always hated wearing contact lenses and I got to a time in my life that I needed a change. A friend recommended optilase, I went for the free consultation and the person that did all the exams was really nice and I felt safe and confident enough to go ahead, I was recommended the PRK. I Put on a piece of paper how much I spent and would still spend on glasses for the next 10 years, and the surgery was for sure cheaper than that. My prescription was very high, both eyes, myopia and astigmatism Optilase provided all the information I needed, in clear manner. And they always made clear that there was nothing wrong with my eyes, it was my own choice to go for the surgery. The day of the surgery I was a bit nervous, who wouldn't? But then, from the reception to the surgeon, they were all so nice and welcoming. Hernandez performed the procedure, lovely surgeon, again all information was provided the way it should. I was instructed in what I should and should not do. The actual procedure took less than 15min, I felt nothing, no discomfort or anything. The whole process is very well done by the team, if I remember well around 3 people supporting the surgery plus one other girl providing pos surgery instructions. Right after the procedure I could already see much better than before without glasses! I couldn't believe it, I cried, thanked everyone and left the clinic knowing that I made the best choice. The recovery for PRK is a bit longer, I stayed for 2 full days no phones, or any screens. In the dark. If you have a little one, I would recommend to have someone minding them, as you are very limited in what you can do for the day of and day after surgery. It is hard to open the eyes, the second day after surgery was the toughest, I thought all went wrong as the vision got worst, but again I was advised it could happen. Note that this was my experience and could be different for other people. The 3rd day I felt nothing and could see much better already. Light sensitivity was very high, and still, 6 days after surgery, but nothing that a sun glasses would not help. My vision still blurred, but I need no glasses to see, my eyes feel dry sometimes, but the eye drops provided helps with it and and am very happy with the results already, even knowing it takes a bit longer to fully recover the vision. I'm back to work (screen at 200% to make sure I dont force my eyes too much) and I have had no headaches or anything, which I would have all the time looking at screens for most of my day. I cannot recommend Optilase enough, they are amazing! If you want to do something for your self and want a place you can trust, go for it, choose Optilase. Thanks to the whole team for one of the best things I did for my self!