The reference to 5% of patients who had undergone photorefractive keratotomy who could not drive at night was incorrect. This information was obtained from reference 10, not reference 6. The authors of reference 10 found that 38% of the patients who had undergone photorefractive keratotomy complained of impaired night vision, while only 4 (4.76%) of the 84 patients who had not undergone photorefractive keratotomy had significant problems with night vision.1
Packer S. Medical Ethics and the Excimer Laser-Reply. Arch Ophthalmol. 1997;115(11):1484. doi:10.1001/archopht.1997.01100160654032
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