Illinois Vision Certification Practice Test

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Prepare for the Illinois Vision Certification Test. Master key concepts with flashcards and multiple choice questions that include hints and explanations. Boost your confidence and ace your exam!

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What is defined as Legal Blindness?

Visual acuity of 20/50 or less
Central visual acuity of 20/200 or less in the better eye after correction
Visual field restricted to 30 degrees
Complete lack of vision

The correct answer is: Central visual acuity of 20/200 or less in the better eye after correction

Legal blindness is defined as having central visual acuity of 20/200 or less in the better eye after correction. This specific measurement is crucial because it provides a standard to assess the level of vision as it affects daily activities and eligibility for various services and accommodations. Individuals with a visual acuity of 20/200 can see at 20 feet what a person with normal vision can see at 200 feet, indicating a significant impairment in sight. The definition focuses solely on central visual acuity rather than peripheral vision, allowing for a standardized criterion across different contexts where legal blindness is a factor, such as in determining eligibility for disability benefits or specialized services. Therefore, those who meet this criterion are recognized as legally blind, regardless of their ability to see at other angles or distances, which is why this option is the correct answer.