Dr. Luis W. Lu, M.D.   Looking back at the early days of refractive surgery, surgeons may now have mixed feelings about the era of radial keratotomy (RK). RK not only had relatively poor predictability but also produced eyes with unstable refractive errors. The significant diurnal fluctuations and high altitude related hyperopic shifts after surgery […]

• Posted on: Oct 2 2018
• By: editor
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