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The Vision in Preschoolers (VIP) Study, sponsored by the National Eye Institute, initially evaluated 11 vision screening tests in Phase I, including 2 distance visual acuity eye charts – LEA Symbols and HOTV. LEA Symbols was the only distance visual acuity test to move on to Phase 2. Three other tests in Phase 2 measured refractive error and assessed stereoacuity. The Crowded Single LEA Symbols Visual Acuity test for 5 Feet (1.5 meters) was designed exclusively for Phase 2 of VIP.
The VIP Complete Package includes:
VIP Illuminator with Universal Power Supply
Crowded LEA Symbols Disk Card with Masking Window for 3-year-olds: 1 side for each eye
Crowded LEA Symbols Disk Card with Masking Window for 4- and 5-year olds: 1 side for each eye
Baseline Flip Book
LEA Symbols Response Key (Lap Card)
4 LEA Symbols Individual Training Cards
Children's Fun Frame Occluders
Cord to measure testing distance
Recording form and instructions
Universal Power Supply
Eligible for FREE or discounted ground shipping.
Medex SKU: GL-300555