Three-dimensional visualization system for ophthalmic microscopes using visible light and near-infrared illumination

Area of Science:

• Ophthalmic Microsurgery
• Medical Imaging
• Surgical Visualization

Background:

• Traditional ophthalmic microsurgery relies on eyepieces, which can cause surgeon discomfort and eyestrain during prolonged procedures.
• Existing visualization systems may involve signal delays and significant light exposure to the patient's eye.

Purpose of the Study:

• To develop and describe a novel three-dimensional (3D) visualization system for ophthalmic microscopes.
• To enable eyepiece-free microsurgery with enhanced visualization and reduced patient light exposure.
• To improve surgeon comfort and reduce eyestrain during extended surgical operations.

Main Methods:

• A 3D visualization system was established using mixed illumination (visible and near-infrared light) for improved object information acquisition.
• A custom-designed stereoscopic 3D display was directly connected to the ophthalmic microscope camera, eliminating eyepieces.
• The system was evaluated in clinical ophthalmology trials comparing it to conventional methods.

Main Results:

• The system provides signal delay-free visualization for surgeons.
• It significantly reduces the amount of light irradiated onto the patient's eye, particularly via near-infrared illumination.
• Clinical trials showed comparable operation times to conventional systems, with reduced surgeon discomfort and eyestrain.

Conclusions:

• The developed 3D visualization system offers a viable alternative to traditional eyepiece-based ophthalmic microsurgery.
• The system enhances surgical precision through improved visualization while prioritizing patient safety and surgeon well-being.
• This technology represents a significant advancement in ophthalmic surgical visualization and comfort.