[5] In 1963, Dr. Leon Goldman used the ruby laser to treat pigmented skin cells and reported on his findings.
The carbon dioxide laser was developed by Kumar Patel and others in the early 1960s and is now a common and versatile tool not only for medicinal purposes but also for welding and drilling, among other uses.
Dr. Peter Kiefhaber was the first to "successfully perform endoscopic argon laser photocoagulation for gastrointestinal bleeding in humans".
Kiefhaber is also considered a pioneer in using the Nd:YAG laser in medicine, also using it to control gastrointestinal bleeding.
(Dougherty, 1972[9]) Since the early 1980s, applications have particularly developed, and lasers have become indispensable tools in ophthalmology, gastroenterology, and facial and aesthetic surgery.