From Boston - Beta-carotene may lower the risk of cognitive decline. In a clinical trial of over 4000 subjects followed for nearly 2 decades, those randomized to 50 mg of beta-carotene every other day did better on cognitive tests compared to those who took placebo. Protective effects were not seen in the short-term. From Alabama - ...

Implantable contact lenses, known as phakic intraocular lenses (IOLs) to ophthalmologists, are presently being investigated and utilized as another refractive procedure. There are two phakic IOLs presently FDA approved in the U.S. They are the Verisyse Phakic IOL produced by AMO and the Visian ICL made by Staar surgical. In general, phakic ...

A preop overview of how LASIK vision correction surgery works.