Instuctions for Flipper/Accommodation Therapy
“Flipper” bars are used to train the muscles inside the eyes that control our focus or what optometrists call accommodation. The lenses in the flipper bar are of two b/pes, a “plus lens” that allow the muscle to relax or do less work, and a “minus lens” that forces the eyes to work harder or put forth more eflort than normal or focus. Using this exercise is similar to looking at an object far away where the eyes relax and then looking up close where the eyes must focus. The two tasks are different however, because of the way the eyes may align through the “flippers.”
The exercise involves holding a printed card or chad at ones reading distancg normally benveen 13 and 17 inches. Then, starting wittr the plus lenses, focusing on the card until it is clear; as soon as the letter becomes clear, “flip” the lenses from the plus power to the minus power. With the minus lenses is front of the eyes, they must now focus not only the amount that they would normally have to for the reading distance, but also the exfa amount created by the power of the lens.
If clear focus cannot be obtaincd through the minus lenses, tlren try pushing the reading card slowly away from you. If thc chart still cannot be cleared, then weaker power lenses may be needed. Once the minus lenses are clearo4 the lenses are flipped again to the plus side and the eyes must relax and let the lenses help to do the focusing. The cycle is then repeated again and again for the prescribed length of time.
As the exercise proceeds, you will find fire lenses harder and harder to clear. This is due to the accommodation mechanism (or muscle) tiring. The goal of the exercise is to be able to quickly clear the plus and minus lenses continually for several minutes.