Goat's eye integrated with a human cataractous lens: A training model for phacoemulsification

Area of Science:

• Ophthalmology
• Surgical Education
• Biomedical Engineering

Background:

• Phacoemulsification is a standard cataract surgery technique.
• Effective surgical training models are crucial for developing surgeon proficiency.
• Existing models may be costly or lack anatomical fidelity.

Purpose of the Study:

• To describe a simple, inexpensive, and effective training technique for phacoemulsification.
• To utilize a readily available animal model (goat eye) for surgical simulation.
• To enhance surgical training by integrating a human cataractous nucleus.

Main Methods:

• A goat eye is prepared and mounted to present the limbus.
• A continuous curvilinear capsulorhexis (5-5.5 mm) is created in the anterior lens capsule.
• A crater is formed in the cortex to snugly fit a human cataractous nucleus, which is then inserted into the goat's capsular bag.
• The corneal wound is sutured to complete the model preparation.

Main Results:

• The described technique provides a stable platform for practicing phacoemulsification.
• Precise capsulorhexis and crater creation are key to minimizing nucleus wobble during training.
• The model simulates key aspects of human cataract surgery.

Conclusions:

• This goat eye model offers a cost-effective and accessible method for surgical training in phacoemulsification.
• The technique allows surgeons to practice handling a human cataractous nucleus in a simulated capsular bag.
• The model's simplicity and affordability make it suitable for widespread adoption in surgical education programs.