Profile: Calhoun Vision, Inc. offers quality vision through materials science and optics technology. Our products include AC-powered biomicroscope slit lamp and intraocular lens and LAL lens for cataract surgery. We provide LAL® which is similar to monofocal intraocular lenses using standard cataract surgery techniques. By controlling the irradiation parameter, that is, beam intensity, duration, spatial intensity profile & target area, physical changes in the radius of curvature of the LAL surface are brought about, that modifies the refractive power of the implanted LAL to add & subtract spherical power, eliminate astigmatic error & to add multi focality.