Cal. Bus. & Prof. Code § 3091

(a) The board may deny an optometrist license to any applicant guilty of unprofessional conduct or of any cause that would subject a licensee to revocation or suspension of his or her license; or, the board in its sole discretion, may issue a probationary license to an applicant subject to terms and conditions, including, but not limited to, any of the following conditions of probation:
1. (1) Practice limited to a supervised, structured environment in which the licensee’s activities shall be supervised by another optometrist licensed by the board.
2. (2) Total or partial restrictions on drug prescribing privileges for controlled substances.
3. (3) Continuing medical or psychiatric treatment.
4. (4) Ongoing participation in a specified rehabilitation program.
5. (5) Enrollment and successful completion of a clinical training program.
6. (6) Abstention from the use of alcohol or drugs.
7. (7) Restrictions against engaging in certain types of optometry practice.
8. (8) Compliance with all provisions of this chapter.
9. (9) Any other terms and conditions deemed appropriate by the board.
(b) The board may modify or terminate the terms and conditions imposed on the probationary license if the licensee petitions for modification or termination of terms and conditions of probation. A licensee shall not petition for modification or termination of terms and conditions until one year has passed from the effective date of the decision granting the probationary license.