Imagine your surgeon having microscopic, real-time vision during your eye surgery. That’s the power of Intraoperative Optical Coherence Tomography (iOCT). This advanced technology provides live, high-resolution images of your eye’s tissues, allowing for unparalleled precision and safety during delicate procedures.
What is a Intraoperative OCT?
Intraoperative Optical Coherence Tomography (iOCT) is a revolutionary diagnostic tool integrated directly into the surgical microscope. It uses light waves to capture real-time, cross-sectional images of the retina and other parts of the eye, similar to an ultrasound but with much higher resolution. This gives your surgeon a live, sub-surface view of the delicate eye structures they are working on, helping them make critical decisions instantly during the procedure.
Why is this test performed?
The iOCT is utilized by our expert surgeons at Pristine Eye Hospitals to achieve the best possible outcomes. Key reasons include:
To enhance surgical precision in complex retinal procedures like membrane peels and macular hole repairs.
To provide real-time feedback, allowing the surgeon to assess tissue response and adjust their technique immediately.
To confirm the successful completion of surgical goals, such as the complete removal of a membrane or the proper placement of a corneal graft.
To improve safety by helping to avoid unintended damage to delicate retinal layers during surgery.
How to Prepare for Your Intraoperative OCT
The Intraoperative OCT is not a separate appointment; it is used during your scheduled eye surgery. Therefore, preparation involves following all the pre-operative instructions provided by your surgeon for the primary procedure.
Follow all fasting instructions as advised by your anaesthetist.
Arrange for transportation to and from the hospital, as you will not be able to drive after surgery.
Discuss all your current medications with your doctor, who will advise on any adjustments needed before the procedure.
The Procedure: What to Expect Step-by-Step
1. Anaesthesia: You will be given local or general anaesthesia to ensure you are comfortable and feel no pain throughout the surgery.
2. Surgical Setup: Your surgeon will position the operating microscope, which has the iOCT system built into it, over your eye.
3. Real-Time Imaging: As the surgeon performs the procedure, they will periodically use the iOCT to capture live images of the surgical area, viewing them on a screen. This does not require any action from you.
4. Completion: The surgeon uses the iOCT images to confirm the procedure is successfully completed before concluding the surgery.
Understanding Your Results
The ‘results’ from an Intraoperative OCT are not a report you receive after the test. Instead, the results are the real-time images and data that your surgeon sees and interprets instantly during your operation. This immediate feedback helps them to navigate the delicate structures of your eye with greater accuracy.
Your surgeon uses this information to make critical adjustments on the spot, ensuring the best possible surgical outcome. During your post-operative follow-up appointment, your doctor will discuss the success of the surgery, which was guided and confirmed by the iOCT technology.
Frequently Asked Questions
Is the Intraoperative OCT painful?
No, the iOCT is a non-contact imaging technique used while you are under anaesthesia for your surgery. You will not feel anything from the scan itself.
Does iOCT add a lot of time to the surgery?
The process is highly efficient and seamlessly integrated into the surgical workflow. Any additional time is minimal and is dedicated to ensuring maximum precision and safety.
Is Intraoperative OCT available for all eye surgeries?
While incredibly beneficial, iOCT is primarily used in complex retinal surgeries, corneal transplants, and certain glaucoma procedures. Your surgeon will determine if it is necessary for your specific case.

