text_1: Stem cells reverse blindness caused by burns
text_2: The report glosses over remaining uncertainties about the technique and its potential risks. It neglects weaknesses in the trial design, including the absence of a control group, randomization or procedures to mitigate possible bias by evaluators. The reporter also failed to include the fact that some of the researchers have relationships with companies that may stand to benefit from commercialization of their technique. A lead sentence that calls an experimental treatment “a stunning success” can overwhelm details reported in the body of a story about uncertainties, limitations and remaining hurdles.