In the past decade we have seen the convergence of refractive surgery with cataract surgery, which makes sense because the most commonly performed refractive procedure is phacoemulsification with IOL ...

Canon has announced a new lens for photography pros and amateurs to try out. The new lens is notable because it is the first L-Series lens to use Canon's proprietary blue spectrum refractive optics ...

There are lots of fancy types of glass elements companies can stick inside their lenses to improve optical performance. Today, joining the ranks of the aspherical and super-low dispersion elements are ...

L-Series lens first to feature Blue Spectrum Refractive Optics, for “higher Level” of chromatic aberration correction to boost image quality. L-Series lens: first to feature Canon's Blue Spectrum ...

Canon Inc has developed a new Blue Spectrum Refractive (BR) optical element for use in camera lenses that corrects for chromatic aberrations at an exceptionally high level to make possible superior ...

The distribution of human refractive errors displays features that are not commonly seen in other biological variables. Compared with the more typical Gaussian distribution, adult refraction within a ...