Michigan State
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Tiempo de lectura 1 min
Summary of the Michigan State Guidelines
1. Required Screenings
- Pre-school children: Screened at least once between ages 3–5.
- School-age children: Screened in grades 1, 3, 5, 7, and 9.
- Screening includes testing for:
- Visual acuity
- Eye muscle function
- Nearsightedness
- Farsightedness
- Symptoms of other eyesight problems
2. Screening Referral Criteria (Criteria for Passing Vision Test)
For Pre-School (Ages 3–5) and Kindergarten
- Visual Acuity Test (LEA SYMBOLS® Cards): Unable to correctly identify 4 out of 6 symbols at 20/40 with both eyes.
- Two-Line Difference Test: Unable to read 4 out of 6 symbols at 20/25 in one eye after reading at 20/40 with both eyes.
- Stereo Butterfly (Near Test): Unable to identify the butterfly using Polaroid lenses.
For School-Age Children (Grades 1, 3, 5, 7, 9)
-
Visual Acuity Test (LEA SYMBOLS® or Snellen E):
- LEA symbols: Unable to correctly identify 4 out of 6 symbols at 20/40 with both eyes.
- Snellen E symbols: Unable to correctly identify 4 out of 6 symbols at 20/30 with both eyes.
- Two-Line Difference Test: Unable to read 4 out of 6 symbols at 20/20 in one eye after achieving 20/30 with both eyes.
- Plus Lens Test (+1.75D lens): Able to read 4 out of 6 Snellen E symbols at 20/20 with either eye while using the lens.
3. Children Who Should Bypass Screening
- This document does not specifically list children who should bypass screening. However, standard practice typically excludes children with:
- Diagnosed vision issues already under professional care.
- Corrective eyewear prescriptions.
- Recent comprehensive eye exams (e.g., within 12 months).
4. Required Tools OR Important Changes to Tools Used/Discontinued
For Pre-School and Kindergarten
- LEA SYMBOLS® Cards
- Stereo Butterfly Test (near test with Polaroid lenses)
For School-Age Children
- LEA SYMBOLS® Cards or Snellen E symbols
- Plus Lens (+1.75D sphere lens)
- Titmus V2 or Optec 5000 Vision Screeners
Additional Tools
- Durable occluders, spectacle occluders, and frosted glasses
- Optional: Instrument-based vision screeners (e.g., Welch Allyn Spot® Vision Screener or Plusoptix S12C Vision Screener)