Tube shunt surgery in pig eyes: A wet lab teaching model
Objective: To describe a teaching model for aqueous tube shunt surgery using freshly enucleated pig eyes.
Design: A descriptive methods report, containing a small prospective noncomparative interventional case series.
Participants: Six ophthalmology residents from the University of Alberta program.
Methods: A descriptive report outlines the materials and methods required for creating a surgical wet lab that teaches aqueous draining device implantation. Residents practiced each step associated with the insertion of plated aqueous tube shunt devices in porcine eyes.
Results: The porcine model worked well to demonstrate and perform steps associated with tube implant surgery. Trainee comfort improved in all surgical steps practiced during the session when reassessed at 3-month follow-up: priming and anchoring the drainage device (p = 0.042), inserting the tube into the eye (p = 0.025), creating and securing a scleral patch graft (p = 0.034), and closure of the conjunctiva (p = 0.034). Overall confidence in performing tube shunt surgery also remained above baseline at follow-up (p = 0.042).
Conclusions: Implantation of tube shunt devices in the porcine model closely resembles surgery in human eyes. Practicing each step associated with tube shunt surgery on porcine eyes in a supervised wet-lab environment improves trainee confidence in the procedure.
Canadian Journal of Ophthalmology
Plemel, D. J.,
Nazarali, S. A.,
Damji, K. F.,
Chen, S. H.
(2019). Tube shunt surgery in pig eyes: A wet lab teaching model. Canadian Journal of Ophthalmology, 54(5), 585-589.
Available at: https://ecommons.aku.edu/pakistan_fhs_mc_ophthalmol/24
This work was published before the author joined Aga Khan University.