There are very few surgeons in Texas who are both trained and experienced with the EVO ICL. Parkhurst NuVision is considered a top EVO ICL specialist in the United States and especially San Antonio; in fact, Dr. Parkhurst is recognized as a world subject-matter expert in this technology. He teaches and operates internationally. Surgeons have traveled to San Antonio from countries in Europe, Asia, and South America to learn from Dr. Parkhurst regarding techniques for optimal EVO ICL sizing, methods of astigmatism treatment, and best vision results.