Dutch ophthalmologist Herman Snellen developed the chart in 1862. We are still using it to define human vision 154 years later. The phoroptor can trace its origins back to 1909. Today, 107 years later, it is still being used to test vision and calculate refractive error for eyeglasses and contact … [Read more...] about The Tyranny of Snellen
The Laserfit lens process with wavefront-guided optics is now in its fourth clinical year. It is the only wavefront-guided scleral lens system that is clinically available at the present time. The process is protected by 3 patents and additional patents … [Read more...] about LASERFIT AND KERATOCONUS: How are we doing?
A picture is worth a thousand words, and pictures like this are rare. This one is of an eye of a patient with advanced keratoconus. We obtained OCT scans of the eye and used them to create this 3D image. It's a powerful demonstration of our advanced imaging and design capabilities. We use this … [Read more...] about OCT model of advanced Keratoconus eye
Continuing our series of case studies is another ectasia patient whom I first saw in 2011. His diagnosis was pellucid marginal degeneration, but his left eye was the more problematic eye in terms of vision. He was wearing a Biofinity Toric lens in his right eye and a hybrid lens in the left. His … [Read more...] about PMD and Laserfit Precision Lenses