Optometry is a specialty in the healthcare industry concerned with visual acuity. A student interested in this field may expect both course work and clinical experience to become proficient in examining, diagnosing, and treating vision problems.

Mexico, officially the United Mexican States, is a federal constitutional republic in North America. Working may require a work visa, which is difficult to get if you just want to freelance for a short time. Most of the government funded universities on mayor cities (state capital) have short courses on history, gastronomy and cultural subjects, most of them are almost free.