History of the Critical-Line™ Quantum LED
The Critical-Line™ Quantum LED from Good-Lite was first developed in 2024 after the gleaming success of the Insta-Line Quantum Developed by Good-Lite in the early 1970s.The modern Critical-Line™ Quantum LED Device follows recommended guidelines as the reason for development. Unlike Insta-Line™ the Critical-Line™ measures the visual acuity with critical line by age. The Insta-Line™ does not follow recent recommended guidelines.
What is Visual Acuity Screening with Critical-Line?
The measure of a person's sharpness of vision, often referred to as visual acuity, is determined by assessing their ability to identify the smallest line of letters on an eye chart that they can accurately read. This test is fundamental in understanding how clearly a person can perceive details at a specified distance. The line that is typically used as a benchmark in these assessments is known as the "Critical-Line." This line represents the standard level of visual acuity, which is commonly associated with normal vision, often measured as 20/20 vision.
The concept of 20/20 vision implies that a person can see at 20 feet what a person with normal vision is expected to see at that distance. Evaluating visual acuity through this method is crucial in diagnosing potential vision problems and determining the effectiveness of corrective measures such as glasses or contact lenses.
Visual acuity tests, such as those utilizing an eye chart, provide a reliable measure of how well a person can see fine details from a specified distance. The "Critical-Line" on these charts is a key element, often indicating whether someone has normal vision or requires further evaluation for corrective lenses. This line, typically associated with 20/20 vision, serves as a standard for normal visual acuity, helping to assess the clarity of one's eyesight. Regular eye exams using these charts are essential in maintaining good eye health and ensuring that any vision impairments are promptly addressed with the appropriate corrective solutions.
Information on the Critical-Line™ Quantum LED
The Critical-Line™ Quantum LED from Good-Lite is a vision screening device for children aged 3 through high school. The design streamlines the process, requiring only one person to conduct thorough screenings.
With the Critical-Line™ Quantum LED, variables such as illumination on the chart face and chart viewing angle are effectively eliminated, ensuring accurate and reliable results with every screening. Say goodbye to the hassle of adjusting lighting conditions or struggling with viewing angles.
Product dimensions: Height 14.5" x Width 9.25" x Depth 5" (36.83 cm x 23.5 cm x 12.7 cm)
Weight and Dimensions of the Package: 18”x12”x9”, 15 pounds
Manual and Instructions: The package includes a manual, a Good-Lite complimentary product brochure, and Good-Lite registration instructions.What is included: A Critical-Line™ Quantum LED Device, LEA SYMBOLS®/Sloan Letter Distance Chart set with response keys, a power adapter, a wireless remote control, a 10ft measuring cord, and a grey occluder.
