Vision Assessment Corporation Random Dot 3 Stereo Acuity Test with Lea Symbols, Part Number 1009. This professional-grade stereopsis screening tool is designed for the rapid detection of amblyopia and strabismus in both children and adults. The test includes a variety of targets including a large cross, circles, and Lea Symbols (heart, square, circle, house) to accommodate different age groups and communication levels. The booklet features a durable gray vinyl cover with an integrated answer key on the back for quick reference during examinations. Includes the original printed instruction manual. Ideal for ophthalmology clinics, optometry practices, and school screenings.