To give the required fluorescence, only a very small quantity of fluorescein should be added to the water in the flask. The model eye can also be used with a laser source, which helps students to compare and understand the classic ray diagrams of the eye, using this large scale model.
Model Eye Kit
Demonstration kit comprising a 5 litre round bottom glass flask complete with a cork ring stand, 450g of plastic modelling clay and 1 each of the following 50mm diameter meniscus lenses +11D, +8D, +5.5D, +2.5D, -3D. The first 3 lenses are fixed to the flask with plastic modelling clay to show short, normal and long sight respectively when a beam of light is passed through them. The other 2 lenses are
used for correcting the long and short sighted condition. The flask is filled with water and add a little fluorescein (sold separately) in order to show the path of light through the model eye.
Ideal to be used with the LED.white (sold separately).