Unfortunately these facts don't make for a good medical malpractice suit. You could contact the doctor (or insurance if you had insurance) and demand your money back. Chances are you have an uphill battle ahead. Best of luck.
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The costs of a lawsuit, would likely exceed the recovery, but you say your costs were through the roof, so retain a local med mal lawyer to investigate.
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You can make a complaint to the CA Board of Optometry here: http://www.optometry.ca.gov/formspubs/complaint.pdf
The Board can investigate and can bring disciplinary charges and revoke the license if the investigation reveals unprofessional practice. In some cases, the Board will enforce a reimbursement order.
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