Corning Incorporated (NYSE: GLW) is set to report first-quarter 2017 earnings on Tuesday. With Corning stock up more than 30% over the past year, including a 13% climb so far in 2017 on the heels of its strong fourth-quarter report in late January, it's time to consider what to expect from the glass technology specialist.To be fair, Corning doesn't provide specific guidance for revenue or net income.