How To Tell If Contact Lens Is Inside Out. A question numerous newbie users have is: Check laser markings some contact lenses have small laser markings, which can help you when checking if the lens is inside out.
Depending on the lens type, it is sometimes difficult to tell apart the front and rear sides. Do you see the markings clearly?
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For example, one brand has a 123 laser marking near the edge of the lens. For example, one brand has a “123” laser marking near the edge of the lens.