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Memory plastic frames are spectacle frames made from specialized plastic polymers often Nylon 12 or Trogamid. These materials are known for their extreme flexibility and "shape memory" meaning they can be severely bent twisted or stretched and still return to their original shape.
read more about memory plastic frames in eyewear ...The plastic polymers used have a highly elastic quality. This allows the frame to deform without stress or damage. Frames made from this material are highly durable and are a good choice for children's eyewear or sports use as they are very hard to break under normal stress.
The benefits are durability and safety. Since the frames are so flexible, they resist snapping or breaking into sharp pieces. They are also incredibly light comfortable to wear and often feature bright molded colors that do not chip or fade.
Memory plastic frames are challenging to adjust in the traditional sense as the material constantly tries to revert to its manufactured shape. Opticians often rely on a careful combination of heat and specific cooling techniques to make slight lasting adjustments or they rely on the frames being pre-sized accurately.
Memory plastic is a rigid polymer used only for spectacle frames, it cannot be used in soft contact lenses. Frames are still relevant to contact lens wearers. Choosing flexible, durable memory plastic glasses as a backup allows your eyes to rest from contact lens wear and provides necessary vision correction on days when contacts cannot be worn.
Yes, they are highly durable and resistant to breaking due to their extreme flexibility and shape memory.
Yes, memory plastic is often chosen for children's frames because it is light and safely resists snapping when stressed during play.
Many safety glasses use memory plastic due to its resistance to impact and ability to maintain structural integrity.
If your memory plastic frames "stretch out" and no longer hold their shape, they can be "reset" by an optician using specific heating techniques. Proper fit is essential; if the frames slide down, your vision will be blurred because you aren't looking through the optical center.
All About Vision. Kids' Eyeglasses Guide (allaboutvision.com). 2024.
Review of Optometry. Dispensing for Pediatrics (reviewofoptometry.com). 2023.
AAO. Eye Safety for Children (aao.org). 2024.