dr. patricia bath is the inventor who revolutionized the way cataract surgery is performed.the human yi is one of our most complex organs. 100 million cells working hard each day to give us the gift of sight. sometimes the eye's lens gets cloudy. creating what's known as a cataract. it makes it hard to see. >> for years, opthalmologists struggled with finding a better way to remove cataracts. friends and colleagues it's a pleasure to present the this preliminary report. >> reporter: dr. pa trish that bath is the pioneer who revolutionized how cataract surgery was per tomorrowed. >> i discovered a method to remove the cataract with a laser beam. >> reporter: she's the first person to use a laser. she invented laser faco. >> i knew that was a groundbreaking discovery. soy heedly did file a patent for this new technology. in 1986. >> reporter: history in the making. dr. bath is the first african-american female doctor to receive a medical patent. her curiosity began as a child. and by the time she reached high school she was a national science foundation scholar. her cancer res

dr. patricia bath. not many people know about her. she's a true hidden figure.ews to get to as well. starting with president trump. he's meeting with the nation's governors today and says school shootings will be at the top of the agenda. back to cecilia vega at the white house. good morning. >> reporter: good morning. the governors will be here in a few hours. as you say, guns and school safety, a big focus of the talks. president trump is still pushing that idea of training and arming potentially hundreds of thousands of educators. he said had the teachers in parkland been armed, more people would have survived the tragedy. this is putting him at odds with his ally, republican governor and friend rick scott who is among the vocal critics of this idea, speaking out against arming america's teachers. the president is at odds with the nra also over raising the age limit of long guns. they are opposed to that idea. the president says, they'll come around. george, congress is back from its break today. but there is little indication that republicans here on capitol