Glasses with longer, what indicators will change, and what are the implications for your eyes?
Lens transmittance refers to the sharpness of the tiffany and co outlet lens, high-performance ratio is better, higher definition. It works primarily associated with lens color and scratches on the lens, which is proportional to the service life and. using magnifying glasses and microscopes to be observed using 15 years of reading glasses lenses are yellowed and mirror scratches a lot. Glasses almost lost feature such long-term wear, the human eye fatigue, resulting in myopia.
In accordance with the provisions of international standards, each frame must meet basic requirements. Using an adult size to make foam nose as the subject, placed on used frames on his nose, looking oppression of the nose.
After a 30-minute, wearing frames for 1.5 years without leaving any traces on the bubble; use a 5-year, 10 glasses leave obvious traces, who even make bubbles appear around the slightly cracked; wearing reading glasses frames for 15 years has been loose, can't put it entirely. Longer wear more difficult, oppression of the nose bigger.
Frames to meet man's face, along with the increase in time, Discount Oakleys Flak Jacket Sunglasses Cheap frame deformation can occur, see something, it would rock. Prolonged use of the lens, light transmission and clarity are reduced, lenses are also worn, causing eyestrain and see clearly. Eye refractive changes alone, can't long time without glasses.
She believes that increasing adolescent myopia tend to be under 18 years old, recommends an annual optometry glasses. Adult eyewear is relatively stable, but it should also be re-optometry glasses every two or three years. Dynamic change of the refractive error of the eye produces in the elderly, and changes the rotation led glasses, optometric is also recommended for two or three years back.
4 glasses and longevity
Use both hands when you put on and removed his glasses and gently hold the frame legs, often with only one arm may damage the frame left-right balance, resulting in deformation of frame.
Do not mirror when placed face down, mirror should be placed upright or standing up, mirror laid down will wear the most important central part of the lens.
With an exclusive when cleaning the lens wipe the lens cloth or a soft handkerchief or tissue, stained with dirt and sand on the lens, you should first rinse and then wipe or wear lenses are likely to be spent.
Avoid moisture, humidity, especially plastics and tortoise shell Cheap Oakleys Frogskins Sunglasses Outlet frames should pay more attention and accidentally get away moisture to dry, never wears glasses into the bath.