As the field of eye care has advanced, so have the knowledge and skills needed to best care for our patients. Certification is a way to hold the profession to a high standard that is appreciated (and in some cases, required) by clinics and offices everywhere. For the past 30 years, Janice K. Ledford's exam review manuals have been the must-have certification study aids used by those wishing to advance their careers with increased knowledge and certification. This third edition of Certified Ophthalmic Technician Exam Review Manual provides the ultimate experience in exam preparation. This best-selling text is ideal for both individual and group study. The explanatory answers contribute to your understanding of the material, rather than only providing right or wrong feedback. Certified Ophthalmic Technician Exam Review Manual, Third Edition expands on what was originally the only study material available for this highly specialized exam. It remains the go-to source for the most questions and explanatory answers and has been updated to the latest IJCAHPO® criteria. With more than 1800 questions, this text covers all 22 of IJCAHPO's® criteria subjects at the COT® level.