Physical models developed by Haag-Streit permit simulation of tissue properties and complex interactions between tissue, fluids, and surgical instruments in real time. Simulated behavior includes deformation, tearing, cracking, fluid dynamics, and subtle visual effects (e. g. red reflex in cataract surgery, distortions in retina surgery). The advanced algorithms allow for fast computation and almost latency-free results.

The simulator’s handpieces are inserted through incisions in the model eye. The cataract patient head can be operated on from a temporal or superior position. Virtual cataract instruments, such as forceps, visco cannula, cystotome, and phaco probe can be assigned to the handpieces using the touch screen. For posterior segment surgery training, instruments such as a light probe, forceps, endolaser, or vitrector are available. In the retinal detachment training module, trainees can select an air, oil, or gas infusion.

To enhance the lifelike training environment of Eyesi Surgical for posterior segment surgery, it is possible to integrate a binocular indirect ophthalmomicroscope and a stereoscopic diagonal inverter hardware mimic, which is operated like a real OCULUS BIOM®/SDI®. The complex interactions of auxiliary optics are reproduced accurately in the simulation. Even an accidental contact of the lens with the cornea is reproduced.