Flippers have a multi-faceted usage in the optical industry! Use there flippers to test an over-refraction on glasses and contact lenses. Use these flippers to train and test for accommodation in your patients. Both monocular and binocular accommodative facility can be tested using flippers. Moreover, one can train accommodation using flippers - accommodative excess, accommodative insufficiency and accommodative infacility can be treated in pre-presbyopic individuals. Flippers are a must have in your practise and a good tool for your patients during vision training!