Increasing the Visibility During Internal Limiting Membrane Peeling in Vitrectomy Surgery: Evaluation of Monochrome Mode with Brilliant Blue G Staining Using the NGENUITY 3D Visualization System®
Keiji Matsumoto, Yoshihito Sakanishi, Tatsuya Fujii, Ayumi Usui-Ouchi, Toshiro Sakuma, Nobuyuki EbiharaPurpose:
This study aimed to explore the effectiveness of using monochrome mode with Brilliant Blue G (BBG) during vitrectomy surgery with the NGENUITY 3D Visualization System®.
Methods:
Vitrectomy cases involving BBG-stained internal limiting membrane (ILM) peeling with the NGENUITY 3D Visualization System® (Alcon Laboratories, Inc.) at Juntendo University Urayasu Hospital from October 2022 to February 2023 were selected. The contrast ratios between peeled and stained ILM areas under three settings were assessed: normal, yellow, and monochrome. In the monochrome setting, a yellow hue was utilized with zero saturation, while the Friedman test compared these ratios.
Results:
Nineteen patients (19 eyes; seven males, 12 females; average age 68.5 ± 10.3 years) with retinal conditions such as epiretinal membrane (n=11), macular hole (n=4), macular traction syndrome (n=3), and retinoschisis (n=1) were included. We obtained contrast ratios of 1.57 ± 0.21 (normal), 1.60 ± 0.21 (yellow), and 1.92 ± 0.29 (monochrome). The monochrome setting showed significantly higher contrast than that shown by the normal and yellow settings (p = 0.0001, p = 0.0005), with no difference between the normal and yellow settings (p = 0.903).
Conclusion:
Monochrome mode in NGENUITY with BBG potentially enhances contrast and increases visibility during ILM peeling.