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March 1984

Radial Keratotomy

Arch Ophthalmol. 1984;102(3):356. doi:10.1001/archopht.1984.01040030276011

To the Editor.  —The article in the June Archives entitled "Visual, Refractive, and Keratometric Results of Radial Keratotomy" was truly scholarly, well thought out, and instructive.1Although the authors went into great detail describing the preoperative examination and all the measurements that they made prior to the surgery, nowhere was an ultrasound measurement performed for axial length.I further understand that the PERK Study conducted under the National Institutes of Health also does not include axial length as one of their measurements prior to this procedure although they do take numerous other measurements. I realize that there is a correlation between the corneal curvature and the axial length, but I do not think that this extremely important measurement should be neglected.If one operates on a curvature myopia, there is a reasonable chance of success, whereas not much is to be gained in an axial length myopia by performing

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