Some schools offer a program in ophthalmic medical technology. These programs prepare people especially to work in hospitals.
After graduating from this program, you can be certified as a technician or a technologist. The Joint Commission on Allied Health Personnel in Ophthalmology (JCAHPO) offers the exams. There is a written portion and a skills evaluation. The two levels signify increasing amounts of knowledge and skill.
Certification is not necessary to get a job in ophthalmic technology, but it does help. Employers view certification as a sign of your knowledge and abilities.