Lens Slippage - Fact or Fiction? Let's take a look at the problem of lens slippage in the processing of ophthalmic lenses in the optical finish lab. Many lab technicians end up farming out their work to an outside lab for fear of breaking an expensive hydrophobic-coated lens. This can be a very costly expense to the business as well as an inconvenience to the patient. The … [Read more...]
Abbe Number …
What is it? The optical business is filled with technical terms that we hear all the time. We read articles, sit in education classes, listen to sales representatives, and talk with colleagues seeing, hearing and talking about these terms. How many of us really know what these terms are? Where did they come from? Do they even matter? I am going to tell you the tale of one of … [Read more...]
Aspheric Lenses:
A Design, Not a Material What is an aspheric lens and why would you want to recommend one? Isn't polycarbonate good enough? Or high index? Or Trivex? Many opticians ask these questions because they are confused about what an aspheric lens is and how it benefits patients. Polycarbonate, high index and Trivex are wonderful materials for ophthalmic lenses. The confusing part is … [Read more...]