House Bill No. 1683 amends existing vision insurance laws to enhance protections for vision care providers and enrollees. Key provisions include prohibiting insurers from setting fees for noncovered services unless they are reimbursed as covered services, ensuring that providers cannot charge more than their usual rates for noncovered services, and mandating that reimbursements for covered services be at the usual, customary, and reasonable rates. The bill also prohibits insurers from using extrapolation in audits and from incentivizing patients to use services at entities they own, requiring transparency about ownership to patients.

Additionally, the bill clarifies that insurers or prepaid vision plans must provide standard reimbursements for lenses of the same design and quality, and it establishes compliance requirements regardless of an entity's exemption status under other insurance laws. The act is set to take effect on July 1, 2025, and includes an emergency clause for immediate implementation upon passage and approval.