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Ultra-widefield fundus imaging in gas-filled eyes after vitrectomy
Makoto Inoue1, Takashi Koto2, Kazunari Hirota2
1Kyorin Eye Center, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka, Tokyo, 181-8611, Japan. inoue@eye-center.org.
BMC Ophthalmology
|July 5, 2017
Summary
Ultra-widefield imaging effectively visualizes retinal reattachments and breaks after vitrectomy in gas-filled eyes. Green and red lasers offer distinct views of retinal and choroidal vasculature, aiding documentation.
Area of Science:
- Ophthalmology
- Medical Imaging
- Retinal Surgery
Background:
- Evaluating image quality from ultra-widefield (UWF) devices in eyes with intravitreal gas post-vitrectomy for retinal detachment.
- Assessing the utility of UWF imaging for monitoring surgical outcomes in complex retinal cases.
Purpose of the Study:
- To assess the quality of images from an ultra-widefield device in gas-filled eyes after vitrectomy for retinal detachment.
- To compare the visualization of retinal reattachments and breaks using different intravitreal gas concentrations and laser wavelengths.
Main Methods:
- Retrospective case series of 40 eyes undergoing vitrectomy for retinal detachment with varying intravitreal gas fill (40-90%).
- Analysis of ultra-widefield scanning laser ophthalmoscopic images (Optos 200Tx).
- Comparison of image quality and detection rates of retinal breaks/reattachments between gas fill percentages (≥60% vs. <60%) and between green (532 nm) and red (633 nm) laser wavelengths.
Main Results:
- Retinal reattachment was confirmed in all eyes within 40 days post-op (mean 8.7 days).
- Superior retinal breaks were obscured by gas reflection in 5/26 eyes with <60% gas, but became visible with downward gaze.
- Green laser provided better imaging of retinal breaks and vasculature; red laser enhanced visualization of choroidal vasculature.
Conclusions:
- Ultra-widefield fundus imaging is a valuable tool for evaluating retinal breaks and reattachments in gas-filled eyes post-vitrectomy.
- Different laser wavelengths (green and red) provide complementary information on retinal and choroidal structures in gas-filled eyes.
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