Involutional entropion is caused by horizontal laxity of the eyelid, attenuation or disinsertion of eyelid retractors, and overriding by the preseptal orbicularis oculi muscle. Acute spastic entropion is a condition that arises following ocular irritation or inflammation.How do you treat Involutional entropion? Repair of involutional entropion This may require repair of the horizontal laxity via medial and/or lateral canthal tightening. The vertical component is best repaired by vertically short

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