1. US TRENDS IN REFRACTIVE SURGERY: 1998 ASCRS and ISRS SURVEY Richard J. Duffey, MD David Leaming, MD Seattle April 10, 1999

2. DUFFEY 1999 1998 SURVEY n Sept. mailing to 5000 U.S. members of ASCRS n 1431 responses representing 29% of the U.S. ASCRS membership n Second year of refractive data collection allowing analysis and comparison of trends amongst ASCRS and ISRS U.S. surgeons n RK, ALK, PRK, LASIK, ICR, P-IOL, excimer lasers, microkeratomes, topography

3. DUFFEY 1999 > 5 CASES / MONTH

4. DUFFEY 1999 > 25 CASES / MONTH

5. DUFFEY 1999 > 75 CASES / MONTH

6. DUFFEY 1999 PREFERRED SURGERY FOR -4.00 DIOPTER MYOPE

7. DUFFEY 1999 PREFERRED SURGERY FOR -7.00 DIOPTER MYOPE

8. DUFFEY 1999 PREFERRED SURGERY FOR -12.00 DIOPTER MYOPE

9. DUFFEY 1999 UNILATERAL vs SIMULT. BILATERAL SURGERY

10. DUFFEY 1999 SURGERY DONE BILATERAL AT SAME O.R. VISIT

11. DUFFEY 1999 SURGERY PERFORMED IN PAST, PRESENT OR FUTURE

12. DUFFEY 1999 PREFERRED TOPOGRAPHY UNIT

13. DUFFEY 1999 PREFERRED EXCIMER LASER

14. DUFFEY 1999 USE / PREFER MICROKERATOME

15. DUFFEY 1999 ’98 ASCRS SURVEY CONCLUSIONS n LASIK is the fastest growing refractive procedure amongst ASCRS U.S. surgeons n High volume refractive surgeons prefer LASIK over PRK n Bilateral simultaneous surgery is accepted and preferred for LASIK > RK >>PRK n VisX Star preferred 3:1 over all other lasers n Hansatome is the preferred microkeratome; Moria increasing

16. Thanks to the ASCRS leaders hip for their support and for your participation in the 1998 Survey We look forward to your responses in the 1999 survey this fall