Minnesota State
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Time to read 2 min
Summary of the Minnesota State Guidelines
1. Required Screenings
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Visual acuity screeningfor clarity of vision at specified ages:
- Ages 3–6 years: LEA SYMBOLS® or HOTV charts
- Ages 6+ years: Sloan letters chart
- Binocular Fix and Follow for children 4 months to 3 years
- Corneal Light Reflex to check for constant strabismus
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Unilateral Cover Test:
- At Near: Ages 6 months–20 years
- At Distance: Ages 3 years–20 years
- Plus Lens Screening for hyperopia (ages 5+)
- Color Vision Deficiency Screening for kindergarten males
- Stereo Acuity Screening for children ages 3–8 or up to grade 3
- External Inspection and Observation for eye health
2. Screening Referral Criteria (Criteria for Passing Vision Test)
Visual Acuity Passing Criteria:
- Age 3: 10/25 (20/50) or better in each eye
- Age 4: 10/20 (20/40) or better in each eye
- Ages 5+: 10/16 (20/32) or better in each eye
- Referral: If there's a difference of two or more lines between eyes
Plus Lens Screening:
- Pass: Blurred vision with +2.50 glasses
- Refer: Clear vision with +2.50 glasses
Other Screening Criteria:
- Binocular Fix and Follow: Eyes follow the target without abnormal movements
- Cover Test (Near/Distance): No repeatable movement when the eye is uncovered
- Corneal Light Reflex: Light reflections are symmetrical
- Stereo Acuity: Ability to identify depth perception symbols
- Color Vision Screening: Failing Ishihara plates or similar tests results in referral
3. Children Who Should Bypass Screening
- Children with known eye conditions under care of an ophthalmologist/optometrist
- Children already wearing glasses, unless a current prescription check is needed
- Untestable children after two rescreen attempts should be referred for a full eye exam
4. Required Tools OR Important Changes to Tools Used/Discontinued
Tools Required:
- LEA SYMBOLS®, HOTV charts, and Sloan Letters for visual acuity
- Plus Lens (+2.50 glasses) for hyperopia screening
- Occluder glasses, plastic occluders, and adhesive patches to prevent peeking
- Color Vision Screening: Ishihara plates or “Color Vision Testing Made Easy”
- Stereoacuity cards (e.g., Random Dot E or Butterfly Test)
GLD-Vision Important Enhancements:
- Automated digital screening for acuity, depth perception, and color vision
- No manual chart selection; system auto-adjusts to child's age
- HIPAA and FERPA-compliant digital result collection
- Eliminates chart memorization and manual data entry
- Minimal training required for screeners