The selection of a Single Vision Lens (SVL) material is the critical factor determining a pair of glasses' optical performance, wearing comfort, and durability. Professional lens m...
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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.
The selection of a Single Vision Lens (SVL) material is the critical factor determining a pair of glasses' optical performance, wearing comfort, and durability. Professional lens m...
READ MOREThe core distinction between Single Vision Lenses (SVL) and Multifocal Lenses, specifically Progressive Lenses, lies in their fundamental optical design philosophy and how they add...
READ MOREIntroduction In today’s digital world, we’re constantly exposed to screens—whether it’s our smartphones, computers, or televisions. While technology has undoubtedly enhanced our li...
READ MOREIntroduction of Blue Light What exactly is blue light and why should we care about it? Blue light belongs to the high-energy visible (HEV) portion of the light spectrum and is emit...
READ MOREIntroduction to Single Vision Lenses What are Single Vision Lenses? Single vision lenses are a type of prescription lenses designed to correct one type of vision problem in a singl...
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