Vision Screening in Schools: A Brief History and a Clear Path Forward

August 25, 2026

Vision screening has long played an important role in U.S. public schools. While often quiet and routine, these screenings are among the earliest ways schools identify students who may be experiencing visual difficulties that could affect health, access, and learning.

As districts continue to strengthen collaboration across health and educational services, it can be helpful to revisit the origins of vision screening, its intended purpose, and how roles are understood today.

A Brief History of Vision Screening in U.S. Schools

School-based vision screening in the United States has roots that extend back more than a century. The earliest documented state-supported school vision screening program began in 1899 in Connecticut, marking one of the first organized efforts to systematically identify vision problems among school-aged children (Kirk & Keating, 1985).

These early vision screening efforts developed within broader school medical inspection programs that emerged in the late 19th and early 20th centuries. During this period, large urban school systems began employing physicians and nurses to inspect students for health conditions that could affect attendance, participation, or public health. Vision problems were routinely identified alongside hearing issues and communicable diseases during these early school health inspections (Meckel, 1990).

By the early decades of the 20th century, studies associated with these emerging inspection programs documented unexpectedly high rates of previously undetected vision problems among children. These findings contributed to the wider adoption of school vision screening across the United States. As screening programs expanded, professional guidance increasingly emphasized standardized procedures focused on identification and referral, rather than diagnosis within schools (Kirk & Keating, 1985).

From the beginning, vision screening was understood as a public health activity, designed to flag potential concerns and connect families with further evaluation, rather than serving as a diagnostic or educational assessment.

The Purpose of Vision Screening Today

That original purpose remains largely unchanged.

Vision screening is a health screening activity designed to identify students who may have previously unrecognized vision difficulties and who may benefit from further evaluation by medical or educational professionals.

Consistent with this purpose:

  • Vision screening is not diagnostic
  • It does not determine eligibility for special education
  • It does not replace comprehensive educational vision assessments

Instead, screening serves as an early identification and referral mechanism within a district's pupil health program.

Vision Screening in California: A Health-Based Framework

In California, vision screening is grounded in state statutes, regulations, and guidance that place it squarely within pupil health services, rather than within instructional or special education systems.

California Education Code and Title 5 regulations establish:

  • When vision screening is required
  • Who may conduct screenings
  • What training is required
  • How screening should be supervised and implemented

The California Department of Education's Guide for Vision Screening in California Public Schools further clarifies procedures and responsibilities for districts.

Together, these sources reflect a long-standing national understanding of vision screening as a health service provided in schools, distinct from educational evaluation.

Who Is Typically Responsible for Vision Screening

In most California school districts:

  • Credentialed school nurses play a central role in organizing, supervising, and conducting vision screenings.
  • Vision screening is embedded within the district's school health program.
  • School nurses oversee screening protocols, support appropriate follow-up, and coordinate referrals to families, healthcare providers, or educational teams when concerns are identified.

This structure aligns with both historical practice and current law, maintaining vision screening as part of coordinated school health services.

Who Else May Conduct Vision Screenings

California law allows limited flexibility to support districts when needed.

Under specific conditions, districts may authorize certain certificated employees, including credentialed teachers, to assist with vision screening when:

  • The individual holds a valid California teaching credential
  • The individual has completed approved vision screening training
  • Screenings are conducted under the supervision of a credentialed school nurse
  • District procedures align with California Department of Education guidance and referral requirements

This approach is intended to balance access and capacity while maintaining appropriate safeguards and oversight.

Training and Preparation

The phrase "qualified by training" has a specific meaning in California law.

Approved pathways include:

  • Completion of the required vision screening training that includes supervised practice, or
  • Completion of a college or university course specifically focused on vision screening

Courses that focus on eye anatomy, ocular conditions, or functional vision assessment serve a different purpose. These courses are designed to support educational assessment and instruction, rather than health screening, and are distinct from training intended to prepare individuals to conduct vision screenings.

Clarifying the Role of Teachers of the Visually Impaired

Teachers of the Visually Impaired (TVIs) play a critical role in supporting blind and low vision students, and their work complements, but is distinct from, vision screening.

TVIs typically become involved when screening results or other concerns suggest a potential educational impact. At that point, they conduct educational vision assessments such as:

  • Functional Vision Assessments
  • Learning Media Assessments
  • Technology Assessments
  • Expanded Core Curriculum assessments

They also provide instructional services, recommendations, and consultation to support access and learning across environments.

Key Takeaways for Schools and Districts

  • Vision screening is typically conducted as part of school health services and is most often led by credentialed school nurses.
  • Districts may authorize certain trained certificated employees to assist with vision screening when required training and credentialed nurse supervision are in place.
  • Vision screening and educational vision assessment serve different but complementary purposes. Screening supports early identification within health services, while educational vision assessment supports instructional planning and access when educational impact is identified.

By grounding vision screening in its public health origins and maintaining clear, collaborative role distinctions, schools can continue a long-standing practice that supports early identification while ensuring students receive appropriate follow-up, assessment, and educational services.

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Adrian Amandi
Director of the California Education Resource Center and Statewide Outreach Services
California School for the Blind

Reference

California Department of Education. (2019). A Guide for Vision Screening in California Public Schools. https://www.cde.ca.gov/ls/he/hn/documents/visionreport.pdf
(Provides statewide guidance on vision screening procedures, authorized personnel, training pathways, and implementation aligned with California statute and regulation.)

California Education Code § 49452 (2025). Sight and Hearing Test. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=49452&lawCode=EDC
(Defines who may conduct vision and hearing screenings and the supervision and qualification requirements for authorized personnel.)

California Education Code § 49455 (2025). Vision Appraisal. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=49455&lawCode=EDC
(Establishes the requirement for vision screening, grade levels to be screened, required screening components, and delegation parameters.)

California Code of Regulations, Title 5, § 592 (2024). Acceptable Course in Vision Testing. https://www.law.cornell.edu/regulations/california/5-CCR-592
(Specifies the required content and supervised practice necessary for a college or university course to qualify an individual to conduct vision screening.)

Historical References

Kirk, J. W., & Keating, D. P. (1985). Vision screening in schools: A historical perspective. Journal of School Health, 55(4), 138–142.
(Provides a historical overview of the development of school vision screening in the United States, including early prevalence studies, the expansion of screening programs, and the shift toward standardized, referral-based screening practices.)

Meckel, R. A. (1990). Save the babies: American public health reform and the prevention of infant mortality, 1850–1929. Johns Hopkins University Press.
(Documents the rise of school medical inspection programs in the late 19th and early 20th centuries, including the role of physicians and nurses in identifying vision, hearing, and other health concerns among school-aged children.)