1. Duffey US Trends in Refractive Surgery: 1997 ASCRS/ISRS Survey Richard Duffey, MD David Leaming, MD Theodore Werblin, MD, PhD

2. Duffey Sept. 1997 Survey n 41% response rate from ISRS (833 US membership mailings with 345 responses) n 28% response rate from ASCRS (US membership over 6,000 with 5,000 randomized mailings and 1421 responses) n 226 responses represented dual membership in both ISRS and ASCRS and were tabulated in the ISRS data pool

3. Duffey >25 procedures per month for a given surgery

4. Duffey >75 procedures per month for a given surgery

5. Duffey Preferred surgery for -4.00 diopter myope

6. Duffey Preferred surgery for -7.00 diopter myope

7. Duffey Preferred surgery for -12.00 diopter myope

8. Duffey Sometimes simultaneous bilateral surgery on patients

9. Duffey Relative percentages of 4,077 refractive surgeries performed on other doctors

10. Duffey Percentage of eligible refractive surgeons (myopes +/- astig) who would consider refractive surgery

11. Duffey Percentage of eligible refractive surgeons (myopia +/- astig) who have had refactive surgery

12. Duffey Surgeons with access to one or more excimer lasers

13. Duffey Which laser most commonly used by a given surgeon

14. Duffey Conclusions n The trend is away from incisional refractive surgery toward laser procedures n ISRS members had a higher acceptance of LASIK, bilateral simultaneous surgery, and performance of refractive procedures on other physicians and themselves n Higher volume refractive surgeons favor LASIK over other refractive procedures

15. Duffey THANKYOU AND THANKS TO BOTH THE ASCRS AND ISRS LEADERSHIP FOR THEIR COOPERATIVE SUPPORT IN THIS EFFORT