though 3X isn't the most powerful lens out there, the Fresnel Lens can make an excellent low vision magnifier because of it's superior clarity, and large page sized area.Friday, March 19, 2010
Fresnel Lens Low Vision Magnifier
though 3X isn't the most powerful lens out there, the Fresnel Lens can make an excellent low vision magnifier because of it's superior clarity, and large page sized area.
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