Scores are released in about four to six weeks after the testing date. The examination tests practical skills necessary to effectively practice opticianry and is divided into three sections. The first section is lens neutralization and verification. Candidates are asked to interpret and make optical calculations such as combined resultant prism, slab off prism, effective power and compensated power due to vertex fitting distance changes, calculate the index of refraction of a given lens, and calculate the effective power found in a designated meridian of a compound lens. The third section is taking surface power measurement of crown glass lenses and calculating lens power.
Candidates also take fitting measurements such as seg.
Lensometers, lens clocks, calipers, and other opticianry equipment is used in the examination.