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larkspur
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http://www.gizmodo.com/gadgets/gadgets/liquidcrystal-switchable-focus-eyeglass-lenses-167757.php" would be so cool!
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Math Is Hard said:freaky deeky! Your invention, Lark?
turbo-1 said:Wicked! If they can also deliver a tapered cylinder for astigmatism and correct for field-of-vision defects, we've got some killer technology.
Switchable focus eyeglass lenses use a technology called liquid crystal to change the refractive index of the lens. This allows the lens to switch between different focal lengths, providing clear vision at various distances.
Switchable focus eyeglass lenses offer several benefits, including the ability to see clearly at different distances without needing multiple pairs of glasses, reduced eye strain and fatigue, and improved vision for individuals with conditions such as presbyopia.
One potential downside to switchable focus eyeglass lenses is the initial adjustment period, as it may take some time for the wearer to get used to switching between focal lengths. Additionally, the technology may be more expensive than traditional eyeglass lenses.
The lifespan of switchable focus eyeglass lenses depends on the specific technology used and the care taken by the wearer. However, on average, these lenses can last for several years with proper use and maintenance.
Switchable focus eyeglass lenses are primarily designed for individuals with presbyopia, but they may also be suitable for individuals with other vision problems, such as myopia or hyperopia. It is important to consult with an eye doctor to determine if these lenses are the best option for your specific vision needs.