Teach the functions of the human eye thanks to this model. When the retina moves, the size of the eye bulb will alter. The lens and ciliary body are made of silicone. Under the pressure of water, the curve of the lens wil be altered. Project pictures on the retina to demonstrate:
* Accommodation of the lens
* Near point of vision
* Myopia (near sightedness)
* How eye impairments are correct with glasses
Functional eye is supplied with detailed instruction manual.