What is laser peripheral iridotomy?

Laser Peripheral Iridotomy is a surgical procedure in which a laser is used to create an opening in the iris (the colored part of the eye) so that fluid can leave the angle (natural drainage channel of the eye) more easily. It is performed for patients with closed angles or narrow angles. Narrow angles are at risk for a very large and sudden pressure increase in the eye, which can threaten vision and even cause irreversible blindness. This is why it is important to diagnose and treat patients with this condition.

What happens during the procedure?

This procedure is performed by Dr. Khan at Orbit Eye Centre. Eye drops are used to numb your eye and to make the pupil small. A special contact lens is put on your eye to precisely direct the laser’s high-energy beam of light at the iris in your eye. The laser makes one small hole in the iris. You will see a few brief flashes of light and feel a little discomfort, procedure usually takes less than 2 minutes per eye.

What happens after the procedure?

You will need to remain at the office for approximately 30 minutes after your laser to make sure the eye pressure is normal. You will require a follow up appointment in 2-4 weeks time after the procedure.. Your vision will likely be blurred for a short period, but then it should clear in an hour or two. You will not need to wear an eye patch. If your vision does not clear within a day, or if you feel any pain or discomfort, please call our office right away. If it is the evening or the weekend and you are having problems, please contact Alberta Health Link at 811 and speak with a nurse.

What are the risks?

There are some risks with the laser treatment such as inflammation, bleeding inside the eye, raised eye pressure in the eye and occasionally light sensitivity, glare, double vision or “ghost images”. Problems may occur that could threaten your vision, but they are rare. If at any time you will have questions regarding the procedure, please call our office.

Dr. Ammar Khan, MD, FRCSC, DABO
Eye Physician and Surgeon
Glaucoma Specialist

This information is intended to be for general purposes only and is not meant to replace medical advice by your physician. Please discuss with your physician for more specific information pertaining to you.