Theo Seiler
![Author Theo Seiler Author Theo Seiler](/fileadmin/_processed_/2/2/csm_ATA-Theo-Seiler_cb5f4c2f0c.png)
Number one in our 2014 Power List, Theo Seiler is a pioneer of refractive surgery. Among his achievements are the development of the first clinical dye laser and the invention of corneal crosslinking (CXL); he also performed the first ever PTK, PRK and wavefront-laser guided surgical techniques on the human eye, and was the first to combine LASIK and rapid CXL.