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If a patient presents with a chalazion in the upper lid, could it potentially cause a loss of vision?

  1. True

  2. False

The correct answer is: True

A chalazion, which is a blocked oil gland in the eyelid, typically does not cause a loss of vision. While a chalazion can cause discomfort, redness, and swelling in the affected area, it usually does not affect vision unless it becomes significantly large and obstructs the visual axis. In most cases, a chalazion can be managed with warm compresses and lid hygiene without leading to vision loss.