Phototherapeutic keratectomy is defined as which procedure?

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Multiple Choice

Phototherapeutic keratectomy is defined as which procedure?

Phototherapeutic keratectomy uses a laser to remove a superficial portion of the cornea—primarily the anterior stromal tissue and overlying epithelium—in order to erase scar tissue and smooth the front surface. This targets the front layers of the cornea where scars and dystrophy-induced irregularities sit, improving corneal transparency. It does not involve the iris or sclera, and it doesn't remove tissue from the posterior stroma, which would be a different procedure.

Phototherapeutic keratectomy uses a laser to remove a superficial portion of the cornea—primarily the anterior stromal tissue and overlying epithelium—in order to erase scar tissue and smooth the front surface. This targets the front layers of the cornea where scars and dystrophy-induced irregularities sit, improving corneal transparency. It does not involve the iris or sclera, and it doesn't remove tissue from the posterior stroma, which would be a different procedure.

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