A basic vision therapy tool no vision therapy practice should be without. Improved Marsden Balls now have a better weight which offers a better swing.
The Soft Foam Marsden Balls are 3.25″ with printed black letters and numbers on a 10 foot cord.
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A basic vision therapy tool no vision therapy practice should be without. Improved Marsden Balls now have a better weight which offers a better swing.
A basic vision therapy tool no vision therapy practice should be without. Improved Marsden Balls now have a better weight which offers a better swing.
The Soft Foam Marsden Balls are 3.25″ with printed black letters and numbers on a 10 foot cord.
Aperture Rule™ Trainer Kit is a standard instrument in most VT programs. Features progressive fixed demand. Polarized or colored lenses are not required. Helps improve low fusional and accommodative reserves, poor stereopsis, Fixation disparity suppression & tight accommodation-conversion relationship.

These Yoked Prism Frames come with an elastic string and lens sizes: 38 mm for pediatrics . This frame also come with a soft adjustable nose piece. Large thumbscrews are on each side so that each prism can be secured.
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