To increase the power of the peripheral prism, the bi-part double Fresnel prism combines two prism segments angled to each other. This design allows for up to 43 degrees of expansion to the visual ...

Researchers from the Schepens Eye Research Institute of Massachusetts Eye and Ear and Harvard Medical School have designed three new eyeglasses using high-power prisms to optimally expand the visual ...

I read with interest the article by D W Kim et al 1 on conservative management for consecutive esotropia (ET) after intermittent exotropia (IXT) surgery. The authors managed patients with full-time ...

Boston, Mass. -- Researchers from the Schepens Eye Research Institute of Massachusetts Eye and Ear and Harvard Medical School have designed three new eyeglasses using high-power prisms to optimally ...