Which symptom is a sign that a lens is inverted?

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Multiple Choice

Which symptom is a sign that a lens is inverted?

Explanation:
When a lens is inverted, its shape sits awkwardly on the eye, causing an uncomfortable fit. The misaligned surface rubs against the cornea and eyelids during blinking, which leads to irritation and mild discomfort. Vision isn’t guaranteed to be perfectly clear, but the wearer will typically notice irritation rather than flawless acuity. The other signs—perfect sharpness, no edge flare, or no movement at all—don't reliably indicate inversion, whereas the sensation of discomfort is the most consistent clue that the lens isn’t seated correctly.

When a lens is inverted, its shape sits awkwardly on the eye, causing an uncomfortable fit. The misaligned surface rubs against the cornea and eyelids during blinking, which leads to irritation and mild discomfort. Vision isn’t guaranteed to be perfectly clear, but the wearer will typically notice irritation rather than flawless acuity. The other signs—perfect sharpness, no edge flare, or no movement at all—don't reliably indicate inversion, whereas the sensation of discomfort is the most consistent clue that the lens isn’t seated correctly.

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