The severity rating scales support consistency in determining service delivery times for students who are Blind or Visually Impaired. Use the scales to establish how often a particular service should be delivered to a student. The Vision Services Severity Rating Scale was updated in 2024. For more information about the updated document, watch LIVE with LIO: Using the New Severity Rating Scale.
Vision Services Severity Rating Scale (VSSRS)
VSSRSFor visual impairment services delivered by teachers and teacher consultants. |
Download VSSRS [PDF] |
Orientation & Mobility Severity Rating Scales (O&MSRS)
O&MSRSFor orientation and mobility services. |
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O&MSRS+For orientation and mobility services delivered to students with additional needs. |