A simulated eye for vitreous surgery using Japanese quail eggs

Area of Science:

• Ophthalmology
• Surgical Simulation
• Medical Education

Background:

• Vitreous surgery requires extensive training for developing essential psychomotor skills.
• Current training models can be expensive and may not fully replicate the nuances of the human vitreous cavity.

Purpose of the Study:

• To develop and evaluate a cost-effective simulated eye model using Japanese quail eggs for vitreous surgery training.
• To assess the utility of this model for simulating key aspects of vitreoretinal procedures.

Main Methods:

• Japanese quail eggs were modified by creating a sclerocorneal opening and attaching a silicone cap.
• Trocars were inserted, and the yolk and albumen were resected using a standard vitreous cutter.
• The inner eggshell membrane was utilized to simulate internal limiting membrane peeling.

Main Results:

• The yolk and albumen mimicked the vitreous body, allowing for resection with a vitreous cutter.
• The inner eggshell membrane, visualized with stains like Brilliant Blue G, enabled simulated membrane peeling.
• The model facilitated training in port placement, central vitreous resection, and macular membrane manipulation.

Conclusions:

• The Japanese quail egg model provides a viable platform for simulating vitreous chamber spatial recognition.
• This low-cost model is beneficial for initial training in fundamental vitreous surgery techniques.
• The model aids in developing skills for port creation, vitreous body resection, and macular membrane peeling.