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when 2 lenses are combined to make one eyeglass. Upper lens for a  good distance visions while other lower lens for clear close vision.

About Dr. William Columbus

Dr. William F. Columbus, known as Dr. Bill, is the founder and surgical director at Columbus LASIK Vision, with over 40,000 LASIK procedures performed. A graduate of Scranton University and Penn State University Medical Center, he completed his ophthalmology training at Nassau County Medical Center and a fellowship in cornea and refractive surgery at Cornell Medical Center. With centers in Philadelphia, Harrisburg, and Wilkes-Barre, Dr. Columbus offers state-of-the-art LASIK at competitive prices. Trusted by colleagues, patients, and even his own family, Dr. Bill is committed to delivering life-changing vision correction with precision, care, and expertise.

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