From the article The Quest for Perfect VisionOphthalmology isn’t the only thing that Schallhorn has done. He flew F-14s in the Navy before becoming a TOPGUN instructor and then an ophthalmologist. He said that he always planned to become a doctor but that this was something “wild and fun” to do after college.Since leaving the top of the aviation world, Steve Schallhorn has become a leading surgeon.Karl Stonecipher not only practices lasik but also has performed many clinical trials of the procedure for the FDA. Stonecipher’s two uncles, one a research-oriented cardiologist and another an agriculture expert, influenced his decision to perform FDA clinical trials. He has also given lectures and trained doctors overseas.Karl Stonecipher conducts many clinical trials for the FDA.