RENEE MONTAGNE, Host:
NPR's Allison Aubrey reports.
ALLISON AUBREY: But over the years, the FDA has received a steady stream of complaints from unhappy Lasik customers. Dr. Daniel Schultz directs the FDA Center for Devices and Radiological Health.
D: Clearly, there is a group who are not satisfied and do not get the kind of results that they expect.
AUBREY: Some of the reported side effects include eye infections, blurry vision and dry eyes. Schultz says no one knows for certain how many of the people who undergo laser eye surgery actually experience complications. There are lots of anecdotes, and there are some estimates based on clinical trials done by the companies that market Lasik. But Schultz says none of these really answer the question.
D: What we're trying to do is develop more concrete numbers so that we can quantify it.
AUBREY: Allison Aubrey, NPR News.
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