High school students should study mathematics, physics, basic anatomy or even mechanical drawing. A high school diploma or equivalent is preferred. Programs in optical technology are usually offered at community colleges. Some employers require completion of an optician program, while others may hire an individual with no formal background in opticianry. Individuals may get on-the-job training or training in the form of an apprenticeship. Certification, which must be renewed every 3 years, can be applied for through the American Board of Opticianry and the National Contact Lens Examiners.