Flippers can test or train accommodative faclility, positive/negative relative accommodation and convergence and fusional convergence reserves.
Flippers may delay bifocal use in some early presbyopes.
Flippers assist in hyperopia screening and lens demonstrations. Flippers help determine dominancy and powers when fitting monovision contacts.
Flippers come in glasses lenses unless specified with a "P" at the end of flipper part number.
Flippers are clearly labelled as to lens powers.
