We all have been impacted by factors that cause our eyes to feel dry, itchy, irritated and sore. When it is chronic, this uncomfortable sensation is better known as dry eye disease (DED), and it currently affects an estimated 45 million Americans. With dry eye disease, basal tears, as opposed to the reflex tears produced when laughing or crying, don’t provide adequate lubrication for the eyes. Dry eyes may occur if the quality or quantity of tears is diminished. It develops depending on age, ocular and systemic health, and way of life.
Let’s start with a simple truth: Laboratories make better lenses if you can tell them everything you know about the patient’s frame and how it fits on their face. When I say everything, I mean everything. We understand the importance of providing box measurements to the lab, but these frame dimensions don’t tell the lab the shape of the frame eye wire. Let’s say that the frame is an aviator shape, but you don’t let the lab know this, so what could go wrong? The shape of the frame/lens affects both optics and cosmetics. We know the fitting height for progressive lenses should be measured from center pupil to the deepest part of the frame, but do we know why?
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