You can apply a Press-On prism to the back surface of one or both lenses of the patient`s eyeglasses with just water. It can be applied to the entire lens or to any region of the lens.

fresnellens中文

3M™ Press-On™ Prisms, also known as Fresnel Prisms, are valuable tools used to treat several ocular motility disorders, including Strabismus and Diplopia. Phorias and Hemianopia symptoms due to stroke or trauma may also be treated utilizing Fresnel Prisms.