You wake up, reach for your glasses on the bedside table, and put them on before your feet touch the floor. That is exactly how most eye care professionals recommend treating your...
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The molecules responsible for causing the photochromic lens to darken are activated by the sun’s ultraviolet radiation. Because UV rays penetrate clouds, photochromic lens will darken on overcast days as well as sunny days. Photochromic lens typically will not darken inside a vehicle because the windshield glass blocks most UV rays. Recent advancements in technology allow some photochromic lens to activate with both UV and visible light, providing some darkening behind the windshield.
Semi-finished lens is the raw blank used to produce the most individualized RX lens according to the patient’s prescription. Different prescription powers are required for different semi-finished lens types or base curves.
You wake up, reach for your glasses on the bedside table, and put them on before your feet touch the floor. That is exactly how most eye care professionals recommend treating your...
READ MOREWhat Is Presbyopia and Why Do You Need Multifocal Lenses? Picture this: you are holding a restaurant menu at arm's length, squinting at the print, or you just bumped your phone's ...
READ MOREYou are past 40, and something has changed. The menu at your favorite restaurant suddenly seems dimmer. The phone you once read easily now has to be held at arm's length. After a ...
READ MOREIf you are over 45 and have started holding menus and text messages farther from your eyes to read them, you have probably heard that progressive lenses are the modern fix for pres...
READ MOREWhat Is a Progressive Lens in Eyeglasses? You are reading this because near vision has started to feel unreliable, or because someone told you that progressive lenses are the mode...
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