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How is stereo vision measured? Is 1250 arc seconds actually good?
Автор: Strabismus World
Загружено: 2025-09-29
Просмотров: 63
Описание:
Here’s how stereoacuity (measured in arc seconds) is usually categorized in clinical terms:
• Normal / Excellent:
~20–40 arc seconds (many people with healthy binocular vision fall here).
• Good / Functional:
~60–100 arc seconds (still useful depth perception).
• Reduced:
~200–400 arc seconds (noticeable difficulty in fine depth tasks like threading a needle).
• Poor:
~800–3000 arc seconds (limited stereo vision; may only help with very large depth differences).
• Absent:
Beyond 3000 arc seconds, or if no measurable stereoacuity is detected.
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