Alcon Inc. (NYSE:ALC) reported mixed second-quarter results, after the closing bell on Tuesday. Alcon reported quarterly earnings of 74 cents per share which beat the analyst consensus estimate of 73 cents per share. The company reported quarterly sales of $2.48 billion which missed the analyst consensus estimate of $2.52 billion. “We are pleased with our solid second-quarter results, which were driven by robust demand for our innovative products, our balanced geographic footprint and strong execution by our team. These factors contributed to another quarter of sales and earnings growth and ro…