Abstract
Intraoperative optical coherence tomography (iOCT) is widely used in ophthalmic surgeries for cross-sectional imaging of ocular tissues. The greatest advantage of iOCT is its adjunct diagnostic efficacy, which facilitates to decision-making during surgery. Since the development of microscopic-integrated iOCT (MIOCT), it has been widely used mainly for vitreoretinal and anterior segment surgeries. In corneal transplantation, MIOCT allows surgeons to visualise structure underneath the turbid and distorted cornea, which are impossible to visualise with a usual microscope. Real-time visualisation of hard-to-see area reduces the operation time and leads to favorable surgical outcomes. The use of MIOCT is advantageous for a variety of corneal surgical procedures. Here, we have reviewed articles focusing on the utility of iOCT and MIOCT in penetrating keratoplasty, deep anterior lamellar keratoplasty, Descemet stripping automated endothelial keratoplasty, and Descemet membrane endothelial keratoplasty. The applications of MIOCT to corneal surgery in terms of surgical education for trainees, emergency surgery, and novel surgery are also discussed, with our cases performed using RESCAN® 700.
Highlights
Intraoperative optical coherence tomography is an imaging modality capable of showing real-time OCT images of the ocular tissue. is system confers advantages for both surgeon and the medical staff in the operating theatre during surgery
IOCT is widely adopted to many ophthalmic surgeries for intraoperative cross-sectional imaging of the ocular tissues, there were some hurdles which conventional OCT modality must overcome before it is applied in the operating theatre [1]. e first OCT machines were desktop, stationary, and expensive, since they were initially designed for seated patients in outpatient clinic
Siebelmann et al [57] reported the use of microscopic-integrated iOCT (MIOCT) for drainage of acute corneal hydrops in keratoconus. ey performed the surgery using a combination of suturing and gas-aided reattachment of the Descemet membranes (DMs), which may be facilitated by MIOCT
Summary
Intraoperative optical coherence tomography (iOCT) is an imaging modality capable of showing real-time OCT images of the ocular tissue. is system confers advantages for both surgeon and the medical staff in the operating theatre during surgery. After certain surgical manoeuvres, the structures in the anterior chamber would change In this case, in the middle of the surgery, the PAS was found to be wider than expected, and a vitreous strand incarcerating into the surgical wound was observed to be disturbing the DSAEK graft attach in the centre of the host cornea (Figure 3(c)). If a scalpel is used to puncture the host corneal epithelium to correct the folded area, it is necessary to determine whether the endothelial cell side of the graft was folded in contact with the host cornea or to the anterior chamber Making this decision would not be possible without MIOCT (Figures 4(c) and 4(d)). MIOCT greatly aids DMEK in all its stages after the graft insertion
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
