The Caribbean breeze hit me as I walked out of the resort lobby. Across the street, Doctor’s Cave Beach was bright and calm under the Jamaican sun. I could smell jerk chicken in the air. It looked like the ideal place to vacation, but I was there to work. For years, I’d wanted to join Canadian Vision Care (CVC), a charity organization committed to delivering thorough, comprehensive, and integrated care in the developing world, on one of its missions. My company has partnered with them for...