What is a requirement for fitting and adjusting lenses?

To fit and adjust lenses legally in California, it is essential for an individual to be registered as a dispenser. This requirement ensures that the person performing these tasks has received the proper training and is recognized by the state as qualified to provide such services to the public. Registration as a dispenser typically involves meeting specific educational and licensing standards, thereby ensuring a level of competency and adherence to professional standards in optometry practice.

Possession of a manufacturer's endorsement, having a written agreement with an OD, and completion of a state-approved program may include relevant aspects of training or business arrangements, but they do not constitute the direct legal requirement needed to perform lens fitting and adjustment duties in the capacity of an optometric dispenser. Therefore, registration as a dispenser stands out as the primary legal requirement for performing these tasks.