When the UV light diminishes, the lenses fade back. As UV light conditions change, the level of tint adjusts, always providing just the right amount of tint.
Transitions lenses are not only as clear as regular hard-coated lenses indoors and at night — and even clearer with the addition of AR coating — they are much better for your patients than regular clear lenses. They automatically and rapidly adapt to changing light conditions to reduce glare, eyestrain and eye fatigue.
The molecules inside the lenses move and change shape more slowly in colder temperatures, whereas light sensitive lenses may adjust their tint more quickly on scorching days. Like sunglasses, photochromic lenses can reduce your risk of developing eye conditions like cataracts , macular degeneration , corneal sunburn and retinal tissue damage linked to excess sunlight exposure over time. Light sensitive lenses can lose their ability to darken over time.
On average, photochromic lenses will begin to wear out in about three years. How will you notice your photochromic lenses are becoming less effective?
You don't want to strain your eyes looking through dirty glasses every day, so keep them clean! Always wet your transition lenses with lukewarm water.
When tiny dust and dirt particles stick to your lenses, there's a high chance that dry-wiping your glasses can move them around and create micro-scratches on your lens. Avoid spraying household chemical cleaners on your glasses. These contain ammonia, which can deteriorate the special coating on your lenses. After you finish rinsing them, gently shake off any stray droplets that are on the lens. Gently blot your glasses with the right optical cloth. NEVER dry your lenses with paper towels, tissues, or napkins.
While these materials might seem soft on your skin, their textured surfaces can badly scratch your lenses. Using the tip of your shirt is also a bad idea.
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