Piggy backing: This is called piggy backing of a lens and can work in many cases. The curvature of the inside of the colored lens may not match the outer curve of the corrective lens, so the colored lens may easily slip out of place. This usually is not harmful but may result in the loss of the lens.
Answered 10/18/2020
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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