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If Smart Contact Len users wear the lenses too often, or do not handle them with care, the circuits within them may cause more than just itchiness and dryness. The product does have a very intricate circuit system that could very possibly harm the user. The electrical currents and the technology lodged on the cornea could, if used incorrectly, scratch the cornea that may result in loss of depth perception, colour recognition, and perhaps sight entirely. With further research, the Smart Contact Lenses will become more users safe.