The use of intraoperative optical coherence tomography (iOCT) has become commonplace across a range of ophthalmic procedures, helping to visualise, in further detail, treatment of eye disorders, including epiretinal membrane, macular oedema, posterior hyaloidal traction, DMEK and retinal detachment. Access to detailed real time OCT images allows users to benefit from informed decision making which can, therefore, enable them to perform procedures with a greater level of confidence.
Figure 1A: Intraoperative optical coherence tomography (iOCT) showing the deflation of the iris cyst, and B: re-inflation with absolute alcohol (B).
Fig 1B
In a recent case report, Prof Jodhbir Mehta (Singapore National Eye Research Institute) demonstrated how he took advantage of iOCT in the treatment of an iris cyst. In this instance, a 61-year-old male with a past ocular history, presented with gradual onset of blurred vision in 2021. Further examination revealed a large iris stromal cyst.
…the iOCT system… aided the accurate placement of the needle into the cyst and allowed real-time visualisation while the cyst was aspirated, ensuring all contents were removed
The patient subsequently underwent iOCT guided iris stromal cyst aspiration and absolute alcohol injection. Prof Mehta outlined how the iOCT system (RESCAN 700, ZEISS) aided the accurate placement of the needle into the cyst and allowed real-time visualisation while the cyst was aspirated, ensuring all contents were removed. Furthermore, the same iOCT features supported controlled inflation with alcohol. This case clearly demonstrated the efficacy of iOCT in reducing the risk of collateral damage to adjacent corneal endothelial cells.
With features such as an ‘automatic XY tracker’, which compensates for movement of the eye or microscope, and ‘integrated retina protection’ offered in their LUMERA 700 and ARTEVO 800 portfolio, ZEISS has made accessing iOCT simple and intuitive.
RANZCO Breakfast
To learn more about the many applications of iOCT, ophthalmologists are invited to attend a ZEISS breakfast at the Royal Australian and New Zealand College of Ophthalmologists (RANZCO) Congress on Sunday 30 October, 2022. At the breakfast, a panel of Australian iOCT experts will discuss their own experiences adopting iOCT.
Reference
Sing Hui Lim, Victoria Grace Dimacali, Jodhbir Singh Mehta, Intraoperative optical coherence tomography guided iris stromal cyst treatment with absolute alcohol injection. American Journal of Ophthalmology Case Reports, Volume 27, 2022, 101648, ISSN 2451-9936, https://doi.org/10.1016/j.ajoc.2022.101648.
